45237431 has 2 divisors, whose sum is σ = 45237432. Its totient is φ = 45237430.

The previous prime is 45237373. The next prime is 45237457. The reversal of 45237431 is 13473254.

It is a happy number.

45237431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45237431 - 2²² = 41043127 is a prime.

It is a super-2 number, since 2×45237431² = 4092850326959522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is equal to p_2731682 and since 45237431 and 2731682 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 45237394 and 45237403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45237131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22618715 + 22618716.

It is an arithmetic number, because the mean of its divisors is an integer number (22618716).

Almost surely, 2^45237431 is an apocalyptic number.

45237431 is a deficient number, since it is larger than the sum of its proper divisors (1).

45237431 is an equidigital number, since it uses as much as digits as its factorization.

45237431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 29.

The square root of 45237431 is about 6725.8777122395. The cubic root of 45237431 is about 356.3138013975.

The spelling of 45237431 in words is "forty-five million, two hundred thirty-seven thousand, four hundred thirty-one".