45039155 has 8 divisors (see below), whose sum is σ = 61768032. Its totient is φ = 30883968.

The previous prime is 45039143. The next prime is 45039157. The reversal of 45039155 is 55193054.

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

It is a cyclic number.

It is not a de Polignac number, because 45039155 - 2⁶ = 45039091 is a prime.

It is a super-2 number, since 2×45039155² = 4057050966228050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45039157) 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, 643382 + ... + 643451.

It is an arithmetic number, because the mean of its divisors is an integer number (7721004).

Almost surely, 2^45039155 is an apocalyptic number.

45039155 is a deficient number, since it is larger than the sum of its proper divisors (16728877).

45039155 is a wasteful number, since it uses less digits than its factorization.

45039155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286845.

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 45039155 is about 6711.1217393220. The cubic root of 45039155 is about 355.7924636219.

The spelling of 45039155 in words is "forty-five million, thirty-nine thousand, one hundred fifty-five".