125306669 has 2 divisors, whose sum is σ = 125306670. Its totient is φ = 125306668.

The previous prime is 125306663. The next prime is 125306759. The reversal of 125306669 is 966603521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109202500 + 16104169 = 10450^2 + 4013^2 .

It is a cyclic number.

It is not a de Polignac number, because 125306669 - 2¹⁶ = 125241133 is a prime.

It is a super-2 number, since 2×125306669² = 31403522591751122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125306663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62653334 + 62653335.

It is an arithmetic number, because the mean of its divisors is an integer number (62653335).

Almost surely, 2^125306669 is an apocalyptic number.

It is an amenable number.

125306669 is a deficient number, since it is larger than the sum of its proper divisors (1).

125306669 is an equidigital number, since it uses as much as digits as its factorization.

125306669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 125306669 is about 11194.0461406946. The cubic root of 125306669 is about 500.4085580697.

The spelling of 125306669 in words is "one hundred twenty-five million, three hundred six thousand, six hundred sixty-nine".