45712231 has 2 divisors, whose sum is σ = 45712232. Its totient is φ = 45712230.

The previous prime is 45712223. The next prime is 45712301. The reversal of 45712231 is 13221754.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45712231 - 2³ = 45712223 is a prime.

It is a super-2 number, since 2×45712231² = 4179216125994722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45712196 and 45712205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45712211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22856115 + 22856116.

It is an arithmetic number, because the mean of its divisors is an integer number (22856116).

Almost surely, 2^45712231 is an apocalyptic number.

45712231 is a deficient number, since it is larger than the sum of its proper divisors (1).

45712231 is an equidigital number, since it uses as much as digits as its factorization.

45712231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1680, while the sum is 25.

The square root of 45712231 is about 6761.0820879501. The cubic root of 45712231 is about 357.5560568690.

Adding to 45712231 its reverse (13221754), we get a palindrome (58933985).

The spelling of 45712231 in words is "forty-five million, seven hundred twelve thousand, two hundred thirty-one".