13631423 has 4 divisors (see below), whose sum is σ = 14680008. Its totient is φ = 12582840.

The previous prime is 13631411. The next prime is 13631459. The reversal of 13631423 is 32413631.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13631423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13631323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 524273 + ... + 524298.

It is an arithmetic number, because the mean of its divisors is an integer number (3670002).

Almost surely, 2^13631423 is an apocalyptic number.

13631423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13631423 is a deficient number, since it is larger than the sum of its proper divisors (1048585).

13631423 is a wasteful number, since it uses less digits than its factorization.

13631423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048584.

The product of its digits is 1296, while the sum is 23.

The square root of 13631423 is about 3692.0757034492. The cubic root of 13631423 is about 238.8803343450.

The spelling of 13631423 in words is "thirteen million, six hundred thirty-one thousand, four hundred twenty-three".