125345993 has 2 divisors, whose sum is σ = 125345994. Its totient is φ = 125345992.

The previous prime is 125345977. The next prime is 125346017. The reversal of 125345993 is 399543521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73908409 + 51437584 = 8597^2 + 7172^2 .

It is a cyclic number.

It is not a de Polignac number, because 125345993 - 2⁴ = 125345977 is a prime.

It is a super-2 number, since 2×125345993² = 31423235922312098, 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 125345993.

It is not a weakly prime, because it can be changed into another prime (125345923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62672996 + 62672997.

It is an arithmetic number, because the mean of its divisors is an integer number (62672997).

Almost surely, 2^125345993 is an apocalyptic number.

It is an amenable number.

125345993 is a deficient number, since it is larger than the sum of its proper divisors (1).

125345993 is an equidigital number, since it uses as much as digits as its factorization.

125345993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145800, while the sum is 41.

The square root of 125345993 is about 11195.8024723554. The cubic root of 125345993 is about 500.4608990137.

The spelling of 125345993 in words is "one hundred twenty-five million, three hundred forty-five thousand, nine hundred ninety-three".