13001656 has 8 divisors (see below), whose sum is σ = 24378120. Its totient is φ = 6500824.

The previous prime is 13001627. The next prime is 13001663. The reversal of 13001656 is 65610031.

13001656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

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, 812596 + ... + 812611.

It is an arithmetic number, because the mean of its divisors is an integer number (3047265).

Almost surely, 2^13001656 is an apocalyptic number.

It is an amenable number.

13001656 is a deficient number, since it is larger than the sum of its proper divisors (11376464).

13001656 is a wasteful number, since it uses less digits than its factorization.

13001656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625213 (or 1625209 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 13001656 is about 3605.7809140324. The cubic root of 13001656 is about 235.1434524770.

Adding to 13001656 its reverse (65610031), we get a palindrome (78611687).

The spelling of 13001656 in words is "thirteen million, one thousand, six hundred fifty-six".