13425634 has 4 divisors (see below), whose sum is σ = 20138454. Its totient is φ = 6712816.

The previous prime is 13425623. The next prime is 13425641. The reversal of 13425634 is 43652431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43652431 = 6271 ⋅6961.

It can be written as a sum of positive squares in only one way, i.e., 13344409 + 81225 = 3653^2 + 285^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3356407 + ... + 3356410.

Almost surely, 2^13425634 is an apocalyptic number.

13425634 is a deficient number, since it is larger than the sum of its proper divisors (6712820).

13425634 is an equidigital number, since it uses as much as digits as its factorization.

13425634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6712819.

The product of its digits is 8640, while the sum is 28.

The square root of 13425634 is about 3664.1007082230. The cubic root of 13425634 is about 237.6721352282.

The spelling of 13425634 in words is "thirteen million, four hundred twenty-five thousand, six hundred thirty-four".