13772091 has 24 divisors (see below), whose sum is σ = 20161872. Its totient is φ = 8332800.

The previous prime is 13772069. The next prime is 13772117. The reversal of 13772091 is 19027731.

13772091 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 not a de Polignac number, because 13772091 - 2⁹ = 13771579 is a prime.

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 not an unprimeable number, because it can be changed into a prime (13772191) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48871 + ... + 49151.

It is an arithmetic number, because the mean of its divisors is an integer number (840078).

Almost surely, 2^13772091 is an apocalyptic number.

13772091 is a deficient number, since it is larger than the sum of its proper divisors (6389781).

13772091 is a wasteful number, since it uses less digits than its factorization.

13772091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363 (or 332 counting only the distinct ones).

The product of its (nonzero) digits is 2646, while the sum is 30.

The square root of 13772091 is about 3711.0767979119. The cubic root of 13772091 is about 239.6992239092.

The spelling of 13772091 in words is "thirteen million, seven hundred seventy-two thousand, ninety-one".