145405534 has 8 divisors (see below), whose sum is σ = 218343888. Its totient is φ = 72624240.

The previous prime is 145405501. The next prime is 145405541. The reversal of 145405534 is 435504541.

It is a happy number.

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

It is a super-2 number, since 2×145405534² = 42285538635650312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145405496 and 145405505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36922 + ... + 40669.

It is an arithmetic number, because the mean of its divisors is an integer number (27292986).

Almost surely, 2^145405534 is an apocalyptic number.

145405534 is a deficient number, since it is larger than the sum of its proper divisors (72938354).

145405534 is an equidigital number, since it uses as much as digits as its factorization.

145405534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78530.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 145405534 is about 12058.4217043525. The cubic root of 145405534 is about 525.8481034314.

The spelling of 145405534 in words is "one hundred forty-five million, four hundred five thousand, five hundred thirty-four".