13900251 has 8 divisors (see below), whose sum is σ = 19172880. Its totient is φ = 8947232.

The previous prime is 13900247. The next prime is 13900261. The reversal of 13900251 is 15200931.

13900251 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 13900251 - 2² = 13900247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13900231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79800 + ... + 79973.

It is an arithmetic number, because the mean of its divisors is an integer number (2396610).

Almost surely, 2^13900251 is an apocalyptic number.

13900251 is a deficient number, since it is larger than the sum of its proper divisors (5272629).

13900251 is a wasteful number, since it uses less digits than its factorization.

13900251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159805.

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 13900251 is about 3728.3040380312. The cubic root of 13900251 is about 240.4404585178.

The spelling of 13900251 in words is "thirteen million, nine hundred thousand, two hundred fifty-one".