125115773 has 4 divisors (see below), whose sum is σ = 129430140. Its totient is φ = 120801408.

The previous prime is 125115769. The next prime is 125115799. The reversal of 125115773 is 377511521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 88416409 + 36699364 = 9403^2 + 6058^2 .

It is a cyclic number.

It is not a de Polignac number, because 125115773 - 2² = 125115769 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125115713) 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, 2157140 + ... + 2157197.

It is an arithmetic number, because the mean of its divisors is an integer number (32357535).

Almost surely, 2^125115773 is an apocalyptic number.

It is an amenable number.

125115773 is a deficient number, since it is larger than the sum of its proper divisors (4314367).

125115773 is an equidigital number, since it uses as much as digits as its factorization.

125115773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4314366.

The product of its digits is 7350, while the sum is 32.

The square root of 125115773 is about 11185.5162151776. The cubic root of 125115773 is about 500.1543163680.

The spelling of 125115773 in words is "one hundred twenty-five million, one hundred fifteen thousand, seven hundred seventy-three".