651090131 has 2 divisors, whose sum is σ = 651090132. Its totient is φ = 651090130.

The previous prime is 651090103. The next prime is 651090163. The reversal of 651090131 is 131090156.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 651090131 - 2²⁶ = 583981267 is a prime.

It is a super-2 number, since 2×651090131² = 847836717371194322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 651090131.

It is not a weakly prime, because it can be changed into another prime (651090101) 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, 325545065 + 325545066.

It is an arithmetic number, because the mean of its divisors is an integer number (325545066).

Almost surely, 2^651090131 is an apocalyptic number.

651090131 is a deficient number, since it is larger than the sum of its proper divisors (1).

651090131 is an equidigital number, since it uses as much as digits as its factorization.

651090131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810, while the sum is 26.

The square root of 651090131 is about 25516.4678394170. The cubic root of 651090131 is about 866.7230985115.

The spelling of 651090131 in words is "six hundred fifty-one million, ninety thousand, one hundred thirty-one".