109508031 has 20 divisors (see below), whose sum is σ = 169230600. Its totient is φ = 70486416.

The previous prime is 109508023. The next prime is 109508041. The reversal of 109508031 is 130805901.

It is not a de Polignac number, because 109508031 - 2³ = 109508023 is a prime.

It is a super-2 number, since 2×109508031² = 23984017706993922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 109507986 and 109508004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109508011) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 20961 + ... + 25658.

It is an arithmetic number, because the mean of its divisors is an integer number (8461530).

Almost surely, 2^109508031 is an apocalyptic number.

109508031 is a deficient number, since it is larger than the sum of its proper divisors (59722569).

109508031 is an equidigital number, since it uses as much as digits as its factorization.

109508031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46660 (or 46651 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 109508031 is about 10464.6084972157. The cubic root of 109508031 is about 478.4266060130.

It can be divided in two parts, 10950 and 8031, that added together give a palindrome (18981).

The spelling of 109508031 in words is "one hundred nine million, five hundred eight thousand, thirty-one".