125415193 has 2 divisors, whose sum is σ = 125415194. Its totient is φ = 125415192.

The previous prime is 125415109. The next prime is 125415217. The reversal of 125415193 is 391514521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121286169 + 4129024 = 11013^2 + 2032^2 .

It is a cyclic number.

It is not a de Polignac number, because 125415193 - 2²⁵ = 91860761 is a prime.

It is not a weakly prime, because it can be changed into another prime (125415793) 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, 62707596 + 62707597.

It is an arithmetic number, because the mean of its divisors is an integer number (62707597).

Almost surely, 2^125415193 is an apocalyptic number.

It is an amenable number.

125415193 is a deficient number, since it is larger than the sum of its proper divisors (1).

125415193 is an equidigital number, since it uses as much as digits as its factorization.

125415193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 31.

The square root of 125415193 is about 11198.8924898849. The cubic root of 125415193 is about 500.5529788699.

The spelling of 125415193 in words is "one hundred twenty-five million, four hundred fifteen thousand, one hundred ninety-three".