103816131 has 4 divisors (see below), whose sum is σ = 138421512. Its totient is φ = 69210752.

The previous prime is 103816121. The next prime is 103816187. The reversal of 103816131 is 131618301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 103816131 - 2⁵ = 103816099 is a prime.

It is a super-2 number, since 2×103816131² = 21555578111618322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (103816121) 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, 17302686 + ... + 17302691.

It is an arithmetic number, because the mean of its divisors is an integer number (34605378).

Almost surely, 2^103816131 is an apocalyptic number.

103816131 is a deficient number, since it is larger than the sum of its proper divisors (34605381).

103816131 is an equidigital number, since it uses as much as digits as its factorization.

103816131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34605380.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 103816131 is about 10189.0201197171. The cubic root of 103816131 is about 469.9896345986.

The spelling of 103816131 in words is "one hundred three million, eight hundred sixteen thousand, one hundred thirty-one".