105912988 has 24 divisors (see below), whose sum is σ = 197930880. Its totient is φ = 49479360.

The previous prime is 105912971. The next prime is 105912991. The reversal of 105912988 is 889219501.

It is a super-2 number, since 2×105912988² = 22435122054176288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11131 + ... + 18322.

It is an arithmetic number, because the mean of its divisors is an integer number (8247120).

Almost surely, 2^105912988 is an apocalyptic number.

It is an amenable number.

105912988 is a deficient number, since it is larger than the sum of its proper divisors (92017892).

105912988 is a wasteful number, since it uses less digits than its factorization.

105912988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29517 (or 29515 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 43.

The square root of 105912988 is about 10291.4035971776. The cubic root of 105912988 is about 473.1328183732.

The spelling of 105912988 in words is "one hundred five million, nine hundred twelve thousand, nine hundred eighty-eight".