125826817 has 2 divisors, whose sum is σ = 125826818. Its totient is φ = 125826816.

The previous prime is 125826791. The next prime is 125826821. The reversal of 125826817 is 718628521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77510416 + 48316401 = 8804^2 + 6951^2 .

It is a cyclic number.

It is not a de Polignac number, because 125826817 - 2⁷ = 125826689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125826817.

It is not a weakly prime, because it can be changed into another prime (125826917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62913408 + 62913409.

It is an arithmetic number, because the mean of its divisors is an integer number (62913409).

Almost surely, 2^125826817 is an apocalyptic number.

It is an amenable number.

125826817 is a deficient number, since it is larger than the sum of its proper divisors (1).

125826817 is an equidigital number, since it uses as much as digits as its factorization.

125826817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53760, while the sum is 40.

The square root of 125826817 is about 11217.2553238303. The cubic root of 125826817 is about 501.1000008881.

The spelling of 125826817 in words is "one hundred twenty-five million, eight hundred twenty-six thousand, eight hundred seventeen".