45214231 has 2 divisors, whose sum is σ = 45214232. Its totient is φ = 45214230.

The previous prime is 45214223. The next prime is 45214249. The reversal of 45214231 is 13241254.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45214231 - 2³ = 45214223 is a prime.

It is a super-2 number, since 2×45214231² = 4088653369842722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45214261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22607115 + 22607116.

It is an arithmetic number, because the mean of its divisors is an integer number (22607116).

Almost surely, 2^45214231 is an apocalyptic number.

45214231 is a deficient number, since it is larger than the sum of its proper divisors (1).

45214231 is an equidigital number, since it uses as much as digits as its factorization.

45214231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 22.

The square root of 45214231 is about 6724.1528090905. The cubic root of 45214231 is about 356.2528791806.

Adding to 45214231 its reverse (13241254), we get a palindrome (58455485).

The spelling of 45214231 in words is "forty-five million, two hundred fourteen thousand, two hundred thirty-one".