125477513 has 4 divisors (see below), whose sum is σ = 143402880. Its totient is φ = 107552148.

The previous prime is 125477497. The next prime is 125477557. The reversal of 125477513 is 315774521.

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 125477513 - 2⁴ = 125477497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125477593) 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, 8962673 + ... + 8962686.

It is an arithmetic number, because the mean of its divisors is an integer number (35850720).

Almost surely, 2^125477513 is an apocalyptic number.

It is an amenable number.

125477513 is a deficient number, since it is larger than the sum of its proper divisors (17925367).

125477513 is an equidigital number, since it uses as much as digits as its factorization.

125477513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17925366.

The product of its digits is 29400, while the sum is 35.

The square root of 125477513 is about 11201.6745623143. The cubic root of 125477513 is about 500.6358749832.

The spelling of 125477513 in words is "one hundred twenty-five million, four hundred seventy-seven thousand, five hundred thirteen".