125128793 has 4 divisors (see below), whose sum is σ = 127249680. Its totient is φ = 123007908.

The previous prime is 125128777. The next prime is 125128807. The reversal of 125128793 is 397821521.

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, and also an emirpimes, since its reverse is a distinct semiprime: 397821521 = 37 ⋅10751933.

It is a cyclic number.

It is not a de Polignac number, because 125128793 - 2⁴ = 125128777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125128093) 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, 1060355 + ... + 1060472.

It is an arithmetic number, because the mean of its divisors is an integer number (31812420).

Almost surely, 2^125128793 is an apocalyptic number.

It is an amenable number.

125128793 is a deficient number, since it is larger than the sum of its proper divisors (2120887).

125128793 is an equidigital number, since it uses as much as digits as its factorization.

125128793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2120886.

The product of its digits is 30240, while the sum is 38.

The square root of 125128793 is about 11186.0982026800. The cubic root of 125128793 is about 500.1716650555.

The spelling of 125128793 in words is "one hundred twenty-five million, one hundred twenty-eight thousand, seven hundred ninety-three".