13401959 has 4 divisors (see below), whose sum is σ = 13414320. Its totient is φ = 13389600.

The previous prime is 13401937. The next prime is 13401989. The reversal of 13401959 is 95910431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95910431 = 2579 ⋅37189.

It is a cyclic number.

It is not a de Polignac number, because 13401959 - 2¹² = 13397863 is a prime.

It is a super-2 number, since 2×13401959² = 359225010075362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13401919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4379 + ... + 6780.

It is an arithmetic number, because the mean of its divisors is an integer number (3353580).

Almost surely, 2^13401959 is an apocalyptic number.

13401959 is a deficient number, since it is larger than the sum of its proper divisors (12361).

13401959 is a wasteful number, since it uses less digits than its factorization.

13401959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12360.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 13401959 is about 3660.8686127748. The cubic root of 13401959 is about 237.5323479485.

The spelling of 13401959 in words is "thirteen million, four hundred one thousand, nine hundred fifty-nine".