45155238 has 16 divisors (see below), whose sum is σ = 90866496. Its totient is φ = 14959080.

The previous prime is 45155221. The next prime is 45155239. The reversal of 45155238 is 83255154.

It is a junction number, because it is equal to n+sod(n) for n = 45155199 and 45155208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45155239) 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 7 ways as a sum of consecutive naturals, for example, 22108 + ... + 24063.

It is an arithmetic number, because the mean of its divisors is an integer number (5679156).

Almost surely, 2^45155238 is an apocalyptic number.

45155238 is an abundant number, since it is smaller than the sum of its proper divisors (45711258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45155238 is a wasteful number, since it uses less digits than its factorization.

45155238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46339.

The product of its digits is 24000, while the sum is 33.

The square root of 45155238 is about 6719.7647280243. The cubic root of 45155238 is about 356.0978721351.

The spelling of 45155238 in words is "forty-five million, one hundred fifty-five thousand, two hundred thirty-eight".