13631494 has 8 divisors (see below), whose sum is σ = 20833200. Its totient is φ = 6687096.

The previous prime is 13631491. The next prime is 13631539. The reversal of 13631494 is 49413631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13631491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64194 + ... + 64405.

It is an arithmetic number, because the mean of its divisors is an integer number (2604150).

Almost surely, 2^13631494 is an apocalyptic number.

13631494 is a deficient number, since it is larger than the sum of its proper divisors (7201706).

13631494 is a wasteful number, since it uses less digits than its factorization.

13631494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128654.

The product of its digits is 7776, while the sum is 31.

The square root of 13631494 is about 3692.0853186242. The cubic root of 13631494 is about 238.8807490847.

The spelling of 13631494 in words is "thirteen million, six hundred thirty-one thousand, four hundred ninety-four".