45155151 has 20 divisors (see below), whose sum is σ = 67753224. Its totient is φ = 29970000.

The previous prime is 45155137. The next prime is 45155161. The reversal of 45155151 is 15155154.

It is not a de Polignac number, because 45155151 - 2⁶ = 45155087 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45155161) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 19221 + ... + 21441.

Almost surely, 2^45155151 is an apocalyptic number.

45155151 is a deficient number, since it is larger than the sum of its proper divisors (22598073).

45155151 is a wasteful number, since it uses less digits than its factorization.

45155151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2484 (or 2475 counting only the distinct ones).

The product of its digits is 2500, while the sum is 27.

The square root of 45155151 is about 6719.7582545803. The cubic root of 45155151 is about 356.0976434386.

The spelling of 45155151 in words is "forty-five million, one hundred fifty-five thousand, one hundred fifty-one".