13256734 has 4 divisors (see below), whose sum is σ = 19885104. Its totient is φ = 6628366.

The previous prime is 13256723. The next prime is 13256759. The reversal of 13256734 is 43765231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43765231 = 733 ⋅59707.

It is a junction number, because it is equal to n+sod(n) for n = 13256696 and 13256705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3314182 + ... + 3314185.

It is an arithmetic number, because the mean of its divisors is an integer number (4971276).

Almost surely, 2^13256734 is an apocalyptic number.

13256734 is a deficient number, since it is larger than the sum of its proper divisors (6628370).

13256734 is an equidigital number, since it uses as much as digits as its factorization.

13256734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6628369.

The product of its digits is 15120, while the sum is 31.

The square root of 13256734 is about 3640.9798131822. The cubic root of 13256734 is about 236.6712551734.

The spelling of 13256734 in words is "thirteen million, two hundred fifty-six thousand, seven hundred thirty-four".