125670217 has 4 divisors (see below), whose sum is σ = 127184400. Its totient is φ = 124156036.

The previous prime is 125670211. The next prime is 125670247. The reversal of 125670217 is 712076521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 125670217 - 2¹⁹ = 125145929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125670211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 756967 + ... + 757132.

It is an arithmetic number, because the mean of its divisors is an integer number (31796100).

Almost surely, 2^125670217 is an apocalyptic number.

It is an amenable number.

125670217 is a deficient number, since it is larger than the sum of its proper divisors (1514183).

125670217 is an equidigital number, since it uses as much as digits as its factorization.

125670217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514182.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 125670217 is about 11210.2728334327. The cubic root of 125670217 is about 500.8920302842.

The spelling of 125670217 in words is "one hundred twenty-five million, six hundred seventy thousand, two hundred seventeen".