109691231 has 8 divisors (see below), whose sum is σ = 118211184. Its totient is φ = 101183040.

The previous prime is 109691221. The next prime is 109691233. The reversal of 109691231 is 132196901.

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

It is a cyclic number.

It is not a de Polignac number, because 109691231 - 2¹⁴ = 109674847 is a prime.

It is a super-2 number, since 2×109691231² = 24064332316590722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109691233) 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, 31100 + ... + 34446.

It is an arithmetic number, because the mean of its divisors is an integer number (14776398).

Almost surely, 2^109691231 is an apocalyptic number.

109691231 is a deficient number, since it is larger than the sum of its proper divisors (8519953).

109691231 is a wasteful number, since it uses less digits than its factorization.

109691231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5881.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 109691231 is about 10473.3581529517. The cubic root of 109691231 is about 478.6932498455.

The spelling of 109691231 in words is "one hundred nine million, six hundred ninety-one thousand, two hundred thirty-one".