105612030 has 48 divisors (see below), whose sum is σ = 275099760. Its totient is φ = 28111104.

The previous prime is 105612011. The next prime is 105612043. The reversal of 105612030 is 30216501.

It is a super-2 number, since 2×105612030² = 22307801761441800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 105611994 and 105612012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90229 + ... + 91391.

It is an arithmetic number, because the mean of its divisors is an integer number (5731245).

Almost surely, 2^105612030 is an apocalyptic number.

105612030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105612030 is an abundant number, since it is smaller than the sum of its proper divisors (169487730).

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

105612030 is a wasteful number, since it uses less digits than its factorization.

105612030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2185 (or 2182 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 105612030 is about 10276.7713801563. The cubic root of 105612030 is about 472.6842482921.

Adding to 105612030 its reverse (30216501), we get a palindrome (135828531).

The spelling of 105612030 in words is "one hundred five million, six hundred twelve thousand, thirty".