105309130 has 16 divisors (see below), whose sum is σ = 190125000. Its totient is φ = 41997312.

The previous prime is 105309103. The next prime is 105309131. The reversal of 105309130 is 31903501.

It can be written as a sum of positive squares in 4 ways, for example, as 80478841 + 24830289 = 8971^2 + 4983^2 .

It is a super-2 number, since 2×105309130² = 22180025722713800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105309131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12255 + ... + 18994.

Almost surely, 2^105309130 is an apocalyptic number.

105309130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105309130 is a deficient number, since it is larger than the sum of its proper divisors (84815870).

105309130 is a wasteful number, since it uses less digits than its factorization.

105309130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31593.

The product of its (nonzero) digits is 405, while the sum is 22.

The square root of 105309130 is about 10262.0236795673. The cubic root of 105309130 is about 472.2319224356.

The spelling of 105309130 in words is "one hundred five million, three hundred nine thousand, one hundred thirty".