105855131 has 4 divisors (see below), whose sum is σ = 110457552. Its totient is φ = 101252712.

The previous prime is 105855091. The next prime is 105855143. The reversal of 105855131 is 131558501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131558501 = 103 ⋅1277267.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105855131 is a prime.

It is a super-2 number, since 2×105855131² = 22410617518054322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105855094 and 105855103.

It is not an unprimeable number, because it can be changed into a prime (105855331) 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, 2301176 + ... + 2301221.

It is an arithmetic number, because the mean of its divisors is an integer number (27614388).

Almost surely, 2^105855131 is an apocalyptic number.

105855131 is a deficient number, since it is larger than the sum of its proper divisors (4602421).

105855131 is an equidigital number, since it uses as much as digits as its factorization.

105855131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4602420.

The product of its (nonzero) digits is 3000, while the sum is 29.

The square root of 105855131 is about 10288.5922749422. The cubic root of 105855131 is about 473.0466500570.

The spelling of 105855131 in words is "one hundred five million, eight hundred fifty-five thousand, one hundred thirty-one".