45207431 has 2 divisors, whose sum is σ = 45207432. Its totient is φ = 45207430.

The previous prime is 45207419. The next prime is 45207457. The reversal of 45207431 is 13470254.

It is an a-pointer prime, because the next prime (45207457) can be obtained adding 45207431 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45207431 - 2¹⁸ = 44945287 is a prime.

It is a super-2 number, since 2×45207431² = 4087423635239522, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45207431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45207031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22603715 + 22603716.

It is an arithmetic number, because the mean of its divisors is an integer number (22603716).

Almost surely, 2^45207431 is an apocalyptic number.

45207431 is a deficient number, since it is larger than the sum of its proper divisors (1).

45207431 is an equidigital number, since it uses as much as digits as its factorization.

45207431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 45207431 is about 6723.6471501708. The cubic root of 45207431 is about 356.2350187195.

Adding to 45207431 its reverse (13470254), we get a palindrome (58677685).

The spelling of 45207431 in words is "forty-five million, two hundred seven thousand, four hundred thirty-one".