109490631 has 12 divisors (see below), whose sum is σ = 151198632. Its totient is φ = 70475104.

The previous prime is 109490587. The next prime is 109490651. The reversal of 109490631 is 136094901.

It is not a de Polignac number, because 109490631 - 2⁶ = 109490567 is a prime.

It is a super-2 number, since 2×109490631² = 23976396553556322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 109490592 and 109490601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109490651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19176 + ... + 24221.

It is an arithmetic number, because the mean of its divisors is an integer number (12599886).

Almost surely, 2^109490631 is an apocalyptic number.

109490631 is a deficient number, since it is larger than the sum of its proper divisors (41708001).

109490631 is an equidigital number, since it uses as much as digits as its factorization.

109490631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43458 (or 43429 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 109490631 is about 10463.7770905156. Note that the first 3 decimals coincide. The cubic root of 109490631 is about 478.4012652113.

The spelling of 109490631 in words is "one hundred nine million, four hundred ninety thousand, six hundred thirty-one".