125422521 has 8 divisors (see below), whose sum is σ = 191120064. Its totient is φ = 71670000.

The previous prime is 125422471. The next prime is 125422523. The reversal of 125422521 is 125224521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125422521 - 2⁷ = 125422393 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 125422491 and 125422500.

It is not an unprimeable number, because it can be changed into a prime (125422523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2986230 + ... + 2986271.

It is an arithmetic number, because the mean of its divisors is an integer number (23890008).

Almost surely, 2^125422521 is an apocalyptic number.

It is an amenable number.

125422521 is a deficient number, since it is larger than the sum of its proper divisors (65697543).

125422521 is an equidigital number, since it uses as much as digits as its factorization.

125422521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5972511.

The product of its digits is 1600, while the sum is 24.

The square root of 125422521 is about 11199.2196603156. The cubic root of 125422521 is about 500.5627277707.

The spelling of 125422521 in words is "one hundred twenty-five million, four hundred twenty-two thousand, five hundred twenty-one".