13789155 has 16 divisors (see below), whose sum is σ = 23224320. Its totient is φ = 6967008.

The previous prime is 13789151. The next prime is 13789163. The reversal of 13789155 is 55198731.

13789155 = T₁₇₄₆ + T₁₇₄₇ + ... + T₁₇₅₄.

It is not a de Polignac number, because 13789155 - 2² = 13789151 is a prime.

It is a super-2 number, since 2×13789155² = 380281591228050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13789151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23907 + ... + 24476.

It is an arithmetic number, because the mean of its divisors is an integer number (1451520).

Almost surely, 2^13789155 is an apocalyptic number.

13789155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13789155 is a deficient number, since it is larger than the sum of its proper divisors (9435165).

13789155 is a wasteful number, since it uses less digits than its factorization.

13789155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48410.

The product of its digits is 37800, while the sum is 39.

The square root of 13789155 is about 3713.3751493756. The cubic root of 13789155 is about 239.7981810299.

The spelling of 13789155 in words is "thirteen million, seven hundred eighty-nine thousand, one hundred fifty-five".