105140990 has 16 divisors (see below), whose sum is σ = 190617840. Its totient is φ = 41753280.

The previous prime is 105140957. The next prime is 105141007. The reversal of 105140990 is 99041501.

It is a super-2 number, since 2×105140990² = 22109255556360200, which contains 22 as substring.

It is a congruent number.

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, 36431 + ... + 39210.

It is an arithmetic number, because the mean of its divisors is an integer number (11913615).

Almost surely, 2^105140990 is an apocalyptic number.

105140990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105140990 is a deficient number, since it is larger than the sum of its proper divisors (85476850).

105140990 is a wasteful number, since it uses less digits than its factorization.

105140990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75787.

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 105140990 is about 10253.8280656543. The cubic root of 105140990 is about 471.9804615823.

The spelling of 105140990 in words is "one hundred five million, one hundred forty thousand, nine hundred ninety".