13772081 has 8 divisors (see below), whose sum is σ = 14152320. Its totient is φ = 13395568.

The previous prime is 13772069. The next prime is 13772117. The reversal of 13772081 is 18027731.

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 13772081 - 2¹⁰ = 13771057 is a prime.

It is a super-2 number, since 2×13772081² = 379340430141122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13772281) 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, 7595 + ... + 9231.

It is an arithmetic number, because the mean of its divisors is an integer number (1769040).

Almost surely, 2^13772081 is an apocalyptic number.

It is an amenable number.

13772081 is a deficient number, since it is larger than the sum of its proper divisors (380239).

13772081 is a wasteful number, since it uses less digits than its factorization.

13772081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1863.

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 13772081 is about 3711.0754505938. The cubic root of 13772081 is about 239.6991658935.

The spelling of 13772081 in words is "thirteen million, seven hundred seventy-two thousand, eighty-one".