155042365 has 8 divisors (see below), whose sum is σ = 186187608. Its totient is φ = 123942720.

The previous prime is 155042357. The next prime is 155042369. The reversal of 155042365 is 563240551.

It can be written as a sum of positive squares in 4 ways, for example, as 108951844 + 46090521 = 10438^2 + 6789^2 .

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

It is not a de Polignac number, because 155042365 - 2³ = 155042357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155042369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3406 + ... + 17935.

It is an arithmetic number, because the mean of its divisors is an integer number (23273451).

Almost surely, 2^155042365 is an apocalyptic number.

It is an amenable number.

155042365 is a deficient number, since it is larger than the sum of its proper divisors (31145243).

155042365 is a wasteful number, since it uses less digits than its factorization.

155042365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22799.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 155042365 is about 12451.6009010890. The cubic root of 155042365 is about 537.2174711331.

The spelling of 155042365 in words is "one hundred fifty-five million, forty-two thousand, three hundred sixty-five".