125802491 has 2 divisors, whose sum is σ = 125802492. Its totient is φ = 125802490.

The previous prime is 125802463. The next prime is 125802527. The reversal of 125802491 is 194208521.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125802491 is a prime.

It is not a weakly prime, because it can be changed into another prime (125802451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62901245 + 62901246.

It is an arithmetic number, because the mean of its divisors is an integer number (62901246).

Almost surely, 2^125802491 is an apocalyptic number.

125802491 is a deficient number, since it is larger than the sum of its proper divisors (1).

125802491 is an equidigital number, since it uses as much as digits as its factorization.

125802491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 125802491 is about 11216.1709598240. The cubic root of 125802491 is about 501.0677063832.

The spelling of 125802491 in words is "one hundred twenty-five million, eight hundred two thousand, four hundred ninety-one".