745948631 has 2 divisors, whose sum is σ = 745948632. Its totient is φ = 745948630.

The previous prime is 745948589. The next prime is 745948699. The reversal of 745948631 is 136849547.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-745948631 is a prime.

It is a super-2 number, since 2×745948631² = 1112878720181548322, 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 (745941631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372974315 + 372974316.

It is an arithmetic number, because the mean of its divisors is an integer number (372974316).

Almost surely, 2^745948631 is an apocalyptic number.

745948631 is a deficient number, since it is larger than the sum of its proper divisors (1).

745948631 is an equidigital number, since it uses as much as digits as its factorization.

745948631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 47.

The square root of 745948631 is about 27312.0601749484. The cubic root of 745948631 is about 906.9213804761.

The spelling of 745948631 in words is "seven hundred forty-five million, nine hundred forty-eight thousand, six hundred thirty-one".