13422031 has 6 divisors (see below), whose sum is σ = 15613440. Its totient is φ = 11504556.

The previous prime is 13422023. The next prime is 13422049. The reversal of 13422031 is 13022431.

It is a happy number.

It is not a de Polignac number, because 13422031 - 2³ = 13422023 is a prime.

It is a super-3 number, since 3×13422031³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13421996 and 13422014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13422011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 136911 + ... + 137008.

It is an arithmetic number, because the mean of its divisors is an integer number (2602240).

Almost surely, 2^13422031 is an apocalyptic number.

13422031 is a deficient number, since it is larger than the sum of its proper divisors (2191409).

13422031 is an equidigital number, since it uses as much as digits as its factorization.

13422031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273933 (or 273926 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 13422031 is about 3663.6090129816. The cubic root of 13422031 is about 237.6508721897.

Adding to 13422031 its reverse (13022431), we get a palindrome (26444462).

The spelling of 13422031 in words is "thirteen million, four hundred twenty-two thousand, thirty-one".