105532990 has 16 divisors (see below), whose sum is σ = 196087680. Its totient is φ = 40851360.

The previous prime is 105532967. The next prime is 105533003. The reversal of 105532990 is 99235501.

It is a happy number.

It is a super-2 number, since 2×105532990² = 22274423956680200, 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, 169905 + ... + 170524.

It is an arithmetic number, because the mean of its divisors is an integer number (12255480).

Almost surely, 2^105532990 is an apocalyptic number.

105532990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105532990 is a deficient number, since it is larger than the sum of its proper divisors (90554690).

105532990 is a wasteful number, since it uses less digits than its factorization.

105532990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340467.

The product of its (nonzero) digits is 12150, while the sum is 34.

The square root of 105532990 is about 10272.9250946359. The cubic root of 105532990 is about 472.5662999637.

The spelling of 105532990 in words is "one hundred five million, five hundred thirty-two thousand, nine hundred ninety".