125815933 has 2 divisors, whose sum is σ = 125815934. Its totient is φ = 125815932.

The previous prime is 125815927. The next prime is 125815939. The reversal of 125815933 is 339518521.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (125815927) and next prime (125815939).

It can be written as a sum of positive squares in only one way, i.e., 100040004 + 25775929 = 10002^2 + 5077^2 .

It is a cyclic number.

It is not a de Polignac number, because 125815933 - 2⁹ = 125815421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125815892 and 125815901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125815939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62907966 + 62907967.

It is an arithmetic number, because the mean of its divisors is an integer number (62907967).

Almost surely, 2^125815933 is an apocalyptic number.

It is an amenable number.

125815933 is a deficient number, since it is larger than the sum of its proper divisors (1).

125815933 is an equidigital number, since it uses as much as digits as its factorization.

125815933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32400, while the sum is 37.

The square root of 125815933 is about 11216.7701679227. The cubic root of 125815933 is about 501.0855521142.

The spelling of 125815933 in words is "one hundred twenty-five million, eight hundred fifteen thousand, nine hundred thirty-three".