13406155 has 16 divisors (see below), whose sum is σ = 18763200. Its totient is φ = 9191616.

The previous prime is 13406131. The next prime is 13406179. The reversal of 13406155 is 55160431.

It is an interprime number because it is at equal distance from previous prime (13406131) and next prime (13406179).

It is not a de Polignac number, because 13406155 - 2⁵ = 13406123 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2194 + ... + 5623.

It is an arithmetic number, because the mean of its divisors is an integer number (1172700).

Almost surely, 2^13406155 is an apocalyptic number.

13406155 is a deficient number, since it is larger than the sum of its proper divisors (5357045).

13406155 is an frugal number, since it uses more digits than its factorization.

13406155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7843 (or 7829 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 13406155 is about 3661.4416559601. The cubic root of 13406155 is about 237.5571349152.

Adding to 13406155 its reverse (55160431), we get a palindrome (68566586).

The spelling of 13406155 in words is "thirteen million, four hundred six thousand, one hundred fifty-five".