45155642 has 16 divisors (see below), whose sum is σ = 77932800. Its totient is φ = 19221648.

The previous prime is 45155599. The next prime is 45155659. The reversal of 45155642 is 24655154.

It is a junction number, because it is equal to n+sod(n) for n = 45155599 and 45155608.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8738 + ... + 12909.

It is an arithmetic number, because the mean of its divisors is an integer number (4870800).

Almost surely, 2^45155642 is an apocalyptic number.

45155642 is a deficient number, since it is larger than the sum of its proper divisors (32777158).

45155642 is a wasteful number, since it uses less digits than its factorization.

45155642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21805.

The product of its digits is 24000, while the sum is 32.

The square root of 45155642 is about 6719.7947885334. The cubic root of 45155642 is about 356.0989341242.

The spelling of 45155642 in words is "forty-five million, one hundred fifty-five thousand, six hundred forty-two".