13031964 has 36 divisors (see below), whose sum is σ = 35937720. Its totient is φ = 3948960.

The previous prime is 13031899. The next prime is 13031981. The reversal of 13031964 is 46913031.

13031964 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16059 + ... + 16850.

It is an arithmetic number, because the mean of its divisors is an integer number (998270).

Almost surely, 2^13031964 is an apocalyptic number.

It is an amenable number.

13031964 is an abundant number, since it is smaller than the sum of its proper divisors (22905756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13031964 is a wasteful number, since it uses less digits than its factorization.

13031964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32930 (or 32925 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 13031964 is about 3609.9811633858. The cubic root of 13031964 is about 235.3260240213.

Adding to 13031964 its reverse (46913031), we get a palindrome (59944995).

The spelling of 13031964 in words is "thirteen million, thirty-one thousand, nine hundred sixty-four".