125642059 has 2 divisors, whose sum is σ = 125642060. Its totient is φ = 125642058.

The previous prime is 125642057. The next prime is 125642113. The reversal of 125642059 is 950246521.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125642059 - 2¹ = 125642057 is a prime.

Together with 125642057, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (125642057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62821029 + 62821030.

It is an arithmetic number, because the mean of its divisors is an integer number (62821030).

Almost surely, 2^125642059 is an apocalyptic number.

125642059 is a deficient number, since it is larger than the sum of its proper divisors (1).

125642059 is an equidigital number, since it uses as much as digits as its factorization.

125642059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 125642059 is about 11209.0168614379. The cubic root of 125642059 is about 500.8546170937.

The spelling of 125642059 in words is "one hundred twenty-five million, six hundred forty-two thousand, fifty-nine".