133109990 has 32 divisors (see below), whose sum is σ = 260559936. Its totient is φ = 48666240.

The previous prime is 133109989. The next prime is 133110011. The reversal of 133109990 is 99901331.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 133109990.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8420 + ... + 18360.

It is an arithmetic number, because the mean of its divisors is an integer number (8142498).

Almost surely, 2^133109990 is an apocalyptic number.

133109990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133109990 is a deficient number, since it is larger than the sum of its proper divisors (127449946).

133109990 is a wasteful number, since it uses less digits than its factorization.

133109990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10064.

The product of its (nonzero) digits is 6561, while the sum is 35.

The square root of 133109990 is about 11537.3302804418. The cubic root of 133109990 is about 510.5875453372.

The spelling of 133109990 in words is "one hundred thirty-three million, one hundred nine thousand, nine hundred ninety".