13906155 has 8 divisors (see below), whose sum is σ = 22249872. Its totient is φ = 7416608.

The previous prime is 13906147. The next prime is 13906159. The reversal of 13906155 is 55160931.

13906155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13906155 - 2³ = 13906147 is a prime.

It is a super-2 number, since 2×13906155² = 386762293768050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13906159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 463524 + ... + 463553.

It is an arithmetic number, because the mean of its divisors is an integer number (2781234).

Almost surely, 2^13906155 is an apocalyptic number.

13906155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13906155 is a deficient number, since it is larger than the sum of its proper divisors (8343717).

13906155 is an equidigital number, since it uses as much as digits as its factorization.

13906155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927085.

The product of its (nonzero) digits is 4050, while the sum is 30.

The square root of 13906155 is about 3729.0957348934. The cubic root of 13906155 is about 240.4744953021.

The spelling of 13906155 in words is "thirteen million, nine hundred six thousand, one hundred fifty-five".