13949251 has 2 divisors, whose sum is σ = 13949252. Its totient is φ = 13949250.

The previous prime is 13949233. The next prime is 13949263. The reversal of 13949251 is 15294931.

13949251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13949251 is a prime.

It is a super-2 number, since 2×13949251² = 389163206922002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13949281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6974625 + 6974626.

It is an arithmetic number, because the mean of its divisors is an integer number (6974626).

Almost surely, 2^13949251 is an apocalyptic number.

13949251 is a deficient number, since it is larger than the sum of its proper divisors (1).

13949251 is an equidigital number, since it uses as much as digits as its factorization.

13949251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 34.

The square root of 13949251 is about 3734.8696095045. The cubic root of 13949251 is about 240.7226540384.

The spelling of 13949251 in words is "thirteen million, nine hundred forty-nine thousand, two hundred fifty-one".