109409031 has 12 divisors (see below), whose sum is σ = 158174640. Its totient is φ = 72875040.

The previous prime is 109409029. The next prime is 109409081. The reversal of 109409031 is 130904901.

It is not a de Polignac number, because 109409031 - 2¹ = 109409029 is a prime.

It is a super-2 number, since 2×109409031² = 23940672128717922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 109408986 and 109409004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109409081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6886 + ... + 16316.

It is an arithmetic number, because the mean of its divisors is an integer number (13181220).

Almost surely, 2^109409031 is an apocalyptic number.

109409031 is a deficient number, since it is larger than the sum of its proper divisors (48765609).

109409031 is a wasteful number, since it uses less digits than its factorization.

109409031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10726 (or 10723 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 109409031 is about 10459.8771981319. The cubic root of 109409031 is about 478.2823897583.

The spelling of 109409031 in words is "one hundred nine million, four hundred nine thousand, thirty-one".