125249933 has 2 divisors, whose sum is σ = 125249934. Its totient is φ = 125249932.

The previous prime is 125249911. The next prime is 125249953. The reversal of 125249933 is 339942521.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67535524 + 57714409 = 8218^2 + 7597^2 .

It is a cyclic number.

It is not a de Polignac number, because 125249933 - 2²⁴ = 108472717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125249903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62624966 + 62624967.

It is an arithmetic number, because the mean of its divisors is an integer number (62624967).

Almost surely, 2^125249933 is an apocalyptic number.

It is an amenable number.

125249933 is a deficient number, since it is larger than the sum of its proper divisors (1).

125249933 is an equidigital number, since it uses as much as digits as its factorization.

125249933 is an evil number, because the sum of its binary digits is even.

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

The square root of 125249933 is about 11191.5116494600. The cubic root of 125249933 is about 500.3330221433. Note that the first 3 decimals are identical.

The spelling of 125249933 in words is "one hundred twenty-five million, two hundred forty-nine thousand, nine hundred thirty-three".