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145356537 = 397499507
BaseRepresentation
bin10001010100111…
…11011011111001
3101010111212200110
420222133123321
5244202402122
622231254533
73413336664
oct1052373371
9333455613
10145356537
1175060577
124081a449
13241644b1
141543a6db
15cb6390c
hex8a9f6f9

145356537 has 8 divisors (see below), whose sum is σ = 195807136. Its totient is φ = 95905152.

The previous prime is 145356509. The next prime is 145356553. The reversal of 145356537 is 735653541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145356537 - 210 = 145355513 is a prime.

It is a super-2 number, since 2×1453565372 = 42257045697264738, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145356495 and 145356504.

It is not an unprimeable number, because it can be changed into a prime (145356557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249463 + ... + 250044.

It is an arithmetic number, because the mean of its divisors is an integer number (24475892).

Almost surely, 2145356537 is an apocalyptic number.

It is an amenable number.

145356537 is a deficient number, since it is larger than the sum of its proper divisors (50450599).

145356537 is an equidigital number, since it uses as much as digits as its factorization.

145356537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499607.

The product of its digits is 189000, while the sum is 39.

The square root of 145356537 is about 12056.3898825478. The cubic root of 145356537 is about 525.7890321491.

The spelling of 145356537 in words is "one hundred forty-five million, three hundred fifty-six thousand, five hundred thirty-seven".

Divisors: 1 3 97 291 499507 1498521 48452179 145356537