109131290 has 8 divisors (see below), whose sum is σ = 196436340. Its totient is φ = 43652512.

The previous prime is 109131289. The next prime is 109131329. The reversal of 109131290 is 92131901.

It can be written as a sum of positive squares in 2 ways, for example, as 91145209 + 17986081 = 9547^2 + 4241^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 5456555 + ... + 5456574.

Almost surely, 2^109131290 is an apocalyptic number.

109131290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

109131290 is a deficient number, since it is larger than the sum of its proper divisors (87305050).

109131290 is a wasteful number, since it uses less digits than its factorization.

109131290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10913136.

The product of its (nonzero) digits is 486, while the sum is 26.

The square root of 109131290 is about 10446.5922673377. The cubic root of 109131290 is about 477.8773311968.

The spelling of 109131290 in words is "one hundred nine million, one hundred thirty-one thousand, two hundred ninety".