125030791 has 2 divisors, whose sum is σ = 125030792. Its totient is φ = 125030790.

The previous prime is 125030761. The next prime is 125030797. The reversal of 125030791 is 197030521.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125030791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125030797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62515395 + 62515396.

It is an arithmetic number, because the mean of its divisors is an integer number (62515396).

Almost surely, 2^125030791 is an apocalyptic number.

125030791 is a deficient number, since it is larger than the sum of its proper divisors (1).

125030791 is an equidigital number, since it uses as much as digits as its factorization.

125030791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 125030791 is about 11181.7168180919. The cubic root of 125030791 is about 500.0410512962.

It can be divided in two parts, 1250 and 30791, that added together give a square (32041 = 179²).

The spelling of 125030791 in words is "one hundred twenty-five million, thirty thousand, seven hundred ninety-one".