13631902 has 4 divisors (see below), whose sum is σ = 20447856. Its totient is φ = 6815950.

The previous prime is 13631899. The next prime is 13631921. The reversal of 13631902 is 20913631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20913631 = 653 ⋅32027.

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, 3407974 + ... + 3407977.

It is an arithmetic number, because the mean of its divisors is an integer number (5111964).

Almost surely, 2^13631902 is an apocalyptic number.

13631902 is a deficient number, since it is larger than the sum of its proper divisors (6815954).

13631902 is an equidigital number, since it uses as much as digits as its factorization.

13631902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6815953.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 13631902 is about 3692.1405715384. The cubic root of 13631902 is about 238.8831323493.

The spelling of 13631902 in words is "thirteen million, six hundred thirty-one thousand, nine hundred two".