125224861 has 4 divisors (see below), whose sum is σ = 125250400. Its totient is φ = 125199324.

The previous prime is 125224859. The next prime is 125224867. The reversal of 125224861 is 168422521.

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 125224861 - 2¹ = 125224859 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125224867) 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, 2841 + ... + 16078.

It is an arithmetic number, because the mean of its divisors is an integer number (31312600).

Almost surely, 2^125224861 is an apocalyptic number.

It is an amenable number.

125224861 is a deficient number, since it is larger than the sum of its proper divisors (25539).

125224861 is an equidigital number, since it uses as much as digits as its factorization.

125224861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25538.

The product of its digits is 7680, while the sum is 31.

The square root of 125224861 is about 11190.3914587471. The cubic root of 125224861 is about 500.2996350684.

The spelling of 125224861 in words is "one hundred twenty-five million, two hundred twenty-four thousand, eight hundred sixty-one".