125623871 has 2 divisors, whose sum is σ = 125623872. Its totient is φ = 125623870.

The previous prime is 125623867. The next prime is 125623909. The reversal of 125623871 is 178326521.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125623871 - 2² = 125623867 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125629871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62811935 + 62811936.

It is an arithmetic number, because the mean of its divisors is an integer number (62811936).

Almost surely, 2^125623871 is an apocalyptic number.

125623871 is a deficient number, since it is larger than the sum of its proper divisors (1).

125623871 is an equidigital number, since it uses as much as digits as its factorization.

125623871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 35.

The square root of 125623871 is about 11208.2055209565. The cubic root of 125623871 is about 500.8304479488.

The spelling of 125623871 in words is "one hundred twenty-five million, six hundred twenty-three thousand, eight hundred seventy-one".