13772131 has 8 divisors (see below), whose sum is σ = 14532800. Its totient is φ = 13015080.

The previous prime is 13772123. The next prime is 13772167. The reversal of 13772131 is 13127731.

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 13772131 - 2³ = 13772123 is a prime.

It is a super-2 number, since 2×13772131² = 379343184562322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13772096 and 13772105.

It is not an unprimeable number, because it can be changed into a prime (13772191) 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, 11176 + ... + 12346.

It is an arithmetic number, because the mean of its divisors is an integer number (1816600).

Almost surely, 2^13772131 is an apocalyptic number.

13772131 is a deficient number, since it is larger than the sum of its proper divisors (760669).

13772131 is a wasteful number, since it uses less digits than its factorization.

13772131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1809.

The product of its digits is 882, while the sum is 25.

The square root of 13772131 is about 3711.0821871794. The cubic root of 13772131 is about 239.6994559717.

Adding to 13772131 its reverse (13127731), we get a palindrome (26899862).

The spelling of 13772131 in words is "thirteen million, seven hundred seventy-two thousand, one hundred thirty-one".