40315262531 has 2 divisors, whose sum is σ = 40315262532. Its totient is φ = 40315262530.

The previous prime is 40315262503. The next prime is 40315262549. The reversal of 40315262531 is 13526251304.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40315262531 - 2⁶ = 40315262467 is a prime.

It is a super-2 number, since 2×40315262531² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40315262501) 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, 20157631265 + 20157631266.

It is an arithmetic number, because the mean of its divisors is an integer number (20157631266).

Almost surely, 2^40315262531 is an apocalyptic number.

40315262531 is a deficient number, since it is larger than the sum of its proper divisors (1).

40315262531 is an equidigital number, since it uses as much as digits as its factorization.

40315262531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 40315262531 in words is "forty billion, three hundred fifteen million, two hundred sixty-two thousand, five hundred thirty-one".