45731227 has 2 divisors, whose sum is σ = 45731228. Its totient is φ = 45731226.

The previous prime is 45731221. The next prime is 45731239. The reversal of 45731227 is 72213754.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45731227 is a prime.

It is not a weakly prime, because it can be changed into another prime (45731221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22865613 + 22865614.

It is an arithmetic number, because the mean of its divisors is an integer number (22865614).

Almost surely, 2^45731227 is an apocalyptic number.

45731227 is a deficient number, since it is larger than the sum of its proper divisors (1).

45731227 is an equidigital number, since it uses as much as digits as its factorization.

45731227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11760, while the sum is 31.

The square root of 45731227 is about 6762.4867467523. The cubic root of 45731227 is about 357.6055782194.

It can be divided in two parts, 457 and 31227, that added together give a square (31684 = 178²).

The spelling of 45731227 in words is "forty-five million, seven hundred thirty-one thousand, two hundred twenty-seven".