45379531 has 2 divisors, whose sum is σ = 45379532. Its totient is φ = 45379530.

The previous prime is 45379517. The next prime is 45379549. The reversal of 45379531 is 13597354.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45379531 - 2¹⁹ = 44855243 is a prime.

It is a super-2 number, since 2×45379531² = 4118603667559922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45379571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22689765 + 22689766.

It is an arithmetic number, because the mean of its divisors is an integer number (22689766).

Almost surely, 2^45379531 is an apocalyptic number.

45379531 is a deficient number, since it is larger than the sum of its proper divisors (1).

45379531 is an equidigital number, since it uses as much as digits as its factorization.

45379531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56700, while the sum is 37.

The square root of 45379531 is about 6736.4331066225. The cubic root of 45379531 is about 356.6864962141.

The spelling of 45379531 in words is "forty-five million, three hundred seventy-nine thousand, five hundred thirty-one".