13191672 has 32 divisors (see below), whose sum is σ = 35516880. Its totient is φ = 4058880.

The previous prime is 13191649. The next prime is 13191679. The reversal of 13191672 is 27619131.

13191672 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 Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13191679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20829 + ... + 21452.

Almost surely, 2^13191672 is an apocalyptic number.

13191672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13191672 is an abundant number, since it is smaller than the sum of its proper divisors (22325208).

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

13191672 is a wasteful number, since it uses less digits than its factorization.

13191672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42303 (or 42299 counting only the distinct ones).

The product of its digits is 2268, while the sum is 30.

The square root of 13191672 is about 3632.0341408087. The cubic root of 13191672 is about 236.2834380598.

The spelling of 13191672 in words is "thirteen million, one hundred ninety-one thousand, six hundred seventy-two".