45731971 has 2 divisors, whose sum is σ = 45731972. Its totient is φ = 45731970.

The previous prime is 45731957. The next prime is 45732017. The reversal of 45731971 is 17913754.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45731971 - 2¹¹ = 45729923 is a prime.

It is a super-3 number, since 3×45731971³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45731971.

It is not a weakly prime, because it can be changed into another prime (45731941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22865985 + 22865986.

It is an arithmetic number, because the mean of its divisors is an integer number (22865986).

Almost surely, 2^45731971 is an apocalyptic number.

45731971 is a deficient number, since it is larger than the sum of its proper divisors (1).

45731971 is an equidigital number, since it uses as much as digits as its factorization.

45731971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26460, while the sum is 37.

The square root of 45731971 is about 6762.5417558785. The cubic root of 45731971 is about 357.6075175005.

The spelling of 45731971 in words is "forty-five million, seven hundred thirty-one thousand, nine hundred seventy-one".