45167391 has 12 divisors (see below), whose sum is σ = 66348360. Its totient is φ = 29600880.

The previous prime is 45167387. The next prime is 45167399. The reversal of 45167391 is 19376154.

It is not a de Polignac number, because 45167391 - 2² = 45167387 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45167399) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42000 + ... + 43061.

It is an arithmetic number, because the mean of its divisors is an integer number (5529030).

Almost surely, 2^45167391 is an apocalyptic number.

45167391 is a deficient number, since it is larger than the sum of its proper divisors (21180969).

45167391 is a wasteful number, since it uses less digits than its factorization.

45167391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85126 (or 85123 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 45167391 is about 6720.6689399196. The cubic root of 45167391 is about 356.1298157843.

The spelling of 45167391 in words is "forty-five million, one hundred sixty-seven thousand, three hundred ninety-one".