145379553 has 16 divisors (see below), whose sum is σ = 218284032. Its totient is φ = 85266000.

The previous prime is 145379551. The next prime is 145379557. The reversal of 145379553 is 355973541.

It is not a de Polignac number, because 145379553 - 2¹ = 145379551 is a prime.

It is a super-2 number, since 2×145379553² = 42270428860959618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145379551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70033 + ... + 72078.

It is an arithmetic number, because the mean of its divisors is an integer number (13642752).

Almost surely, 2^145379553 is an apocalyptic number.

It is an amenable number.

145379553 is a deficient number, since it is larger than the sum of its proper divisors (72904479).

145379553 is a wasteful number, since it uses less digits than its factorization.

145379553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142156.

The product of its digits is 283500, while the sum is 42.

The square root of 145379553 is about 12057.3443593521. The cubic root of 145379553 is about 525.8167821261.

It can be divided in two parts, 14537 and 9553, that added together give a triangular number (24090 = T₂₁₉).

The spelling of 145379553 in words is "one hundred forty-five million, three hundred seventy-nine thousand, five hundred fifty-three".