109146990 has 16 divisors (see below), whose sum is σ = 261952848. Its totient is φ = 29105856.

The previous prime is 109146979. The next prime is 109146997. The reversal of 109146990 is 99641901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109146997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1819087 + ... + 1819146.

It is an arithmetic number, because the mean of its divisors is an integer number (16372053).

Almost surely, 2^109146990 is an apocalyptic number.

109146990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

109146990 is an abundant number, since it is smaller than the sum of its proper divisors (152805858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

109146990 is a wasteful number, since it uses less digits than its factorization.

109146990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3638243.

The product of its (nonzero) digits is 17496, while the sum is 39.

The square root of 109146990 is about 10447.3436815298. The cubic root of 109146990 is about 477.9002464528.

The spelling of 109146990 in words is "one hundred nine million, one hundred forty-six thousand, nine hundred ninety".