105555730 has 32 divisors (see below), whose sum is σ = 222445440. Its totient is φ = 35306880.

The previous prime is 105555719. The next prime is 105555731. The reversal of 105555730 is 37555501.

It is a super-2 number, since 2×105555730² = 22284024271665800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105555692 and 105555701.

It is not an unprimeable number, because it can be changed into a prime (105555731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15520 + ... + 21259.

It is an arithmetic number, because the mean of its divisors is an integer number (6951420).

Almost surely, 2^105555730 is an apocalyptic number.

105555730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105555730 is an abundant number, since it is smaller than the sum of its proper divisors (116889710).

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

105555730 is a wasteful number, since it uses less digits than its factorization.

105555730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36834.

The product of its (nonzero) digits is 13125, while the sum is 31.

The square root of 105555730 is about 10274.0318278658. The cubic root of 105555730 is about 472.6002400170.

The spelling of 105555730 in words is "one hundred five million, five hundred fifty-five thousand, seven hundred thirty".