13869451 has 2 divisors, whose sum is σ = 13869452. Its totient is φ = 13869450.

The previous prime is 13869419. The next prime is 13869461. The reversal of 13869451 is 15496831.

13869451 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 not a de Polignac number, because 13869451 - 2⁵ = 13869419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13869451.

It is not a weakly prime, because it can be changed into another prime (13869461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6934725 + 6934726.

It is an arithmetic number, because the mean of its divisors is an integer number (6934726).

Almost surely, 2^13869451 is an apocalyptic number.

13869451 is the 1666-th centered decagonal number.

13869451 is a deficient number, since it is larger than the sum of its proper divisors (1).

13869451 is an equidigital number, since it uses as much as digits as its factorization.

13869451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 37.

The square root of 13869451 is about 3724.1711829614. The cubic root of 13869451 is about 240.2627388832.

The spelling of 13869451 in words is "thirteen million, eight hundred sixty-nine thousand, four hundred fifty-one".