501365131 has 2 divisors, whose sum is σ = 501365132. Its totient is φ = 501365130.

The previous prime is 501365119. The next prime is 501365147. The reversal of 501365131 is 131563105.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 501365131 - 2⁵ = 501365099 is a prime.

It is a super-2 number, since 2×501365131² = 502733989165294322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 501365096 and 501365105.

It is not a weakly prime, because it can be changed into another prime (501365101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250682565 + 250682566.

It is an arithmetic number, because the mean of its divisors is an integer number (250682566).

Almost surely, 2^501365131 is an apocalyptic number.

501365131 is a deficient number, since it is larger than the sum of its proper divisors (1).

501365131 is an equidigital number, since it uses as much as digits as its factorization.

501365131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 501365131 is about 22391.1842250471. The cubic root of 501365131 is about 794.4222063850.

The spelling of 501365131 in words is "five hundred one million, three hundred sixty-five thousand, one hundred thirty-one".