13642831 has 8 divisors (see below), whose sum is σ = 13996224. Its totient is φ = 13292160.

The previous prime is 13642807. The next prime is 13642859. The reversal of 13642831 is 13824631.

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

It is a cyclic number.

It is not a de Polignac number, because 13642831 - 2⁹ = 13642319 is a prime.

It is a super-2 number, since 2×13642831² = 372253675389122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13642831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13642801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12691 + ... + 13723.

It is an arithmetic number, because the mean of its divisors is an integer number (1749528).

Almost surely, 2^13642831 is an apocalyptic number.

13642831 is a deficient number, since it is larger than the sum of its proper divisors (353393).

13642831 is a wasteful number, since it uses less digits than its factorization.

13642831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361.

The product of its digits is 3456, while the sum is 28.

The square root of 13642831 is about 3693.6203107520. The cubic root of 13642831 is about 238.9469546089.

The spelling of 13642831 in words is "thirteen million, six hundred forty-two thousand, eight hundred thirty-one".