105831620 has 12 divisors (see below), whose sum is σ = 222246444. Its totient is φ = 42332640.

The previous prime is 105831617. The next prime is 105831631. The reversal of 105831620 is 26138501.

It can be written as a sum of positive squares in 2 ways, for example, as 13017664 + 92813956 = 3608^2 + 9634^2 .

It is a super-2 number, since 2×105831620² = 22400663583648800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105831620.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2645771 + ... + 2645810.

It is an arithmetic number, because the mean of its divisors is an integer number (18520537).

Almost surely, 2^105831620 is an apocalyptic number.

105831620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105831620 is an abundant number, since it is smaller than the sum of its proper divisors (116414824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105831620 is a wasteful number, since it uses less digits than its factorization.

105831620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5291590 (or 5291588 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 105831620 is about 10287.4496353567. The cubic root of 105831620 is about 473.0116253864.

The spelling of 105831620 in words is "one hundred five million, eight hundred thirty-one thousand, six hundred twenty".