45122231 has 32 divisors (see below), whose sum is σ = 59028480. Its totient is φ = 33744480.

The previous prime is 45122227. The next prime is 45122237. The reversal of 45122231 is 13222154.

It is not a de Polignac number, because 45122231 - 2² = 45122227 is a prime.

It is a super-2 number, since 2×45122231² = 4072031460834722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45122237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 270110 + ... + 270276.

It is an arithmetic number, because the mean of its divisors is an integer number (1844640).

Almost surely, 2^45122231 is an apocalyptic number.

45122231 is a deficient number, since it is larger than the sum of its proper divisors (13906249).

45122231 is a wasteful number, since it uses less digits than its factorization.

45122231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236 (or 214 counting only the distinct ones).

The product of its digits is 480, while the sum is 20.

The square root of 45122231 is about 6717.3083150917. The cubic root of 45122231 is about 356.0110856919.

Adding to 45122231 its reverse (13222154), we get a palindrome (58344385).

The spelling of 45122231 in words is "forty-five million, one hundred twenty-two thousand, two hundred thirty-one".