125030761 has 2 divisors, whose sum is σ = 125030762. Its totient is φ = 125030760.

The previous prime is 125030749. The next prime is 125030791. The reversal of 125030761 is 167030521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94945536 + 30085225 = 9744^2 + 5485^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125030761 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (125030791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62515380 + 62515381.

It is an arithmetic number, because the mean of its divisors is an integer number (62515381).

Almost surely, 2^125030761 is an apocalyptic number.

It is an amenable number.

125030761 is a deficient number, since it is larger than the sum of its proper divisors (1).

125030761 is an equidigital number, since it uses as much as digits as its factorization.

125030761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 125030761 is about 11181.7154766163. The cubic root of 125030761 is about 500.0410113027.

The spelling of 125030761 in words is "one hundred twenty-five million, thirty thousand, seven hundred sixty-one".