13154399 has 4 divisors (see below), whose sum is σ = 13475280. Its totient is φ = 12833520.

The previous prime is 13154359. The next prime is 13154419. The reversal of 13154399 is 99345131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99345131 = 1009 ⋅98459.

It is a cyclic number.

It is not a de Polignac number, because 13154399 - 2⁸ = 13154143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13154359) 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 3 ways as a sum of consecutive naturals, for example, 160379 + ... + 160460.

It is an arithmetic number, because the mean of its divisors is an integer number (3368820).

Almost surely, 2^13154399 is an apocalyptic number.

13154399 is a deficient number, since it is larger than the sum of its proper divisors (320881).

13154399 is an equidigital number, since it uses as much as digits as its factorization.

13154399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320880.

The product of its digits is 14580, while the sum is 35.

The square root of 13154399 is about 3626.8993644710. The cubic root of 13154399 is about 236.0606889310.

The spelling of 13154399 in words is "thirteen million, one hundred fifty-four thousand, three hundred ninety-nine".