109412969 has 16 divisors (see below), whose sum is σ = 122789520. Its totient is φ = 96983040.

The previous prime is 109412929. The next prime is 109412971. The reversal of 109412969 is 969214901.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 7907344 + 101505625 = 2812^2 + 10075^2 .

It is not a de Polignac number, because 109412969 - 2⁸ = 109412713 is a prime.

It is a super-2 number, since 2×109412969² = 23942395570789922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109412929) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 17507 + ... + 22919.

It is an arithmetic number, because the mean of its divisors is an integer number (7674345).

Almost surely, 2^109412969 is an apocalyptic number.

It is an amenable number.

109412969 is a deficient number, since it is larger than the sum of its proper divisors (13376551).

109412969 is a wasteful number, since it uses less digits than its factorization.

109412969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5500.

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 109412969 is about 10460.0654395659. The cubic root of 109412969 is about 478.2881280215.

The spelling of 109412969 in words is "one hundred nine million, four hundred twelve thousand, nine hundred sixty-nine".