13125953 has 4 divisors (see below), whose sum is σ = 13146708. Its totient is φ = 13105200.

The previous prime is 13125947. The next prime is 13125961. The reversal of 13125953 is 35952131.

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 3713329 + 9412624 = 1927^2 + 3068^2 .

It is a cyclic number.

It is not a de Polignac number, because 13125953 - 2²² = 8931649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13125923) 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, 9398 + ... + 10703.

It is an arithmetic number, because the mean of its divisors is an integer number (3286677).

Almost surely, 2^13125953 is an apocalyptic number.

It is an amenable number.

13125953 is a deficient number, since it is larger than the sum of its proper divisors (20755).

13125953 is an equidigital number, since it uses as much as digits as its factorization.

13125953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20754.

The product of its digits is 4050, while the sum is 29.

The square root of 13125953 is about 3622.9757106555. The cubic root of 13125953 is about 235.8904080362.

The spelling of 13125953 in words is "thirteen million, one hundred twenty-five thousand, nine hundred fifty-three".