40537313 has 2 divisors, whose sum is σ = 40537314. Its totient is φ = 40537312.

The previous prime is 40537297. The next prime is 40537319. The reversal of 40537313 is 31373504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24720784 + 15816529 = 4972^2 + 3977^2 .

It is a cyclic number.

It is not a de Polignac number, because 40537313 - 2⁴ = 40537297 is a prime.

It is not a weakly prime, because it can be changed into another prime (40537319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20268656 + 20268657.

It is an arithmetic number, because the mean of its divisors is an integer number (20268657).

Almost surely, 2^40537313 is an apocalyptic number.

It is an amenable number.

40537313 is a deficient number, since it is larger than the sum of its proper divisors (1).

40537313 is an equidigital number, since it uses as much as digits as its factorization.

40537313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 26.

The square root of 40537313 is about 6366.8919419133. The cubic root of 40537313 is about 343.5197039068.

The spelling of 40537313 in words is "forty million, five hundred thirty-seven thousand, three hundred thirteen".