105499930 has 16 divisors (see below), whose sum is σ = 190104264. Its totient is φ = 42154560.

The previous prime is 105499907. The next prime is 105499931. The reversal of 105499930 is 39994501.

It can be written as a sum of positive squares in 4 ways, for example, as 96373489 + 9126441 = 9817^2 + 3021^2 .

It is a super-2 number, since 2×105499930² = 22260470460009800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105499931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5044 + ... + 15376.

Almost surely, 2^105499930 is an apocalyptic number.

105499930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105499930 is a deficient number, since it is larger than the sum of its proper divisors (84604334).

105499930 is a wasteful number, since it uses less digits than its factorization.

105499930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11361.

The product of its (nonzero) digits is 43740, while the sum is 40.

The square root of 105499930 is about 10271.3158845398. The cubic root of 105499930 is about 472.5169483390.

The spelling of 105499930 in words is "one hundred five million, four hundred ninety-nine thousand, nine hundred thirty".