13867161 has 32 divisors (see below), whose sum is σ = 23251968. Its totient is φ = 7141440.

The previous prime is 13867157. The next prime is 13867171. The reversal of 13867161 is 16176831.

13867161 = 1² + 2² + ... + 346².

13867161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13867161 - 2² = 13867157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (13867111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39790 + ... + 40136.

It is an arithmetic number, because the mean of its divisors is an integer number (726624).

Almost surely, 2^13867161 is an apocalyptic number.

13867161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13867161 is a deficient number, since it is larger than the sum of its proper divisors (9384807).

13867161 is a wasteful number, since it uses less digits than its factorization.

13867161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541.

The product of its digits is 6048, while the sum is 33.

The square root of 13867161 is about 3723.8637193109. The cubic root of 13867161 is about 240.2495148088.

It can be divided in two parts, 13867 and 161, that added together give a triangular number (14028 = T₁₆₇).

The spelling of 13867161 in words is "thirteen million, eight hundred sixty-seven thousand, one hundred sixty-one".