13031422 has 4 divisors (see below), whose sum is σ = 19547136. Its totient is φ = 6515710.

The previous prime is 13031419. The next prime is 13031429. The reversal of 13031422 is 22413031.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 13031396 and 13031405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13031429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3257854 + ... + 3257857.

It is an arithmetic number, because the mean of its divisors is an integer number (4886784).

Almost surely, 2^13031422 is an apocalyptic number.

13031422 is a deficient number, since it is larger than the sum of its proper divisors (6515714).

13031422 is an equidigital number, since it uses as much as digits as its factorization.

13031422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6515713.

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

The square root of 13031422 is about 3609.9060929614. The cubic root of 13031422 is about 235.3227615692.

Adding to 13031422 its reverse (22413031), we get a palindrome (35444453).

The spelling of 13031422 in words is "thirteen million, thirty-one thousand, four hundred twenty-two".