105271730 has 16 divisors (see below), whose sum is σ = 190306584. Its totient is φ = 41927040.

The previous prime is 105271709. The next prime is 105271741. The reversal of 105271730 is 37172501.

It can be written as a sum of positive squares in 4 ways, for example, as 39450961 + 65820769 = 6281^2 + 8113^2 .

It is a super-2 number, since 2×105271730² = 22164274274385800, 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 105271730.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20261 + ... + 24920.

Almost surely, 2^105271730 is an apocalyptic number.

105271730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105271730 is a deficient number, since it is larger than the sum of its proper divisors (85034854).

105271730 is a wasteful number, since it uses less digits than its factorization.

105271730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45421.

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 105271730 is about 10260.2012650825. The cubic root of 105271730 is about 472.1760122307.

The spelling of 105271730 in words is "one hundred five million, two hundred seventy-one thousand, seven hundred thirty".