109156995 has 24 divisors (see below), whose sum is σ = 199165200. Its totient is φ = 55152576.

The previous prime is 109156981. The next prime is 109157039. The reversal of 109156995 is 599651901.

It is a happy number.

It is not a de Polignac number, because 109156995 - 2⁸ = 109156739 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 109156995.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 62980 + ... + 64689.

It is an arithmetic number, because the mean of its divisors is an integer number (8298550).

Almost surely, 2^109156995 is an apocalyptic number.

109156995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

109156995 is a deficient number, since it is larger than the sum of its proper divisors (90008205).

109156995 is a wasteful number, since it uses less digits than its factorization.

109156995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127699 (or 127696 counting only the distinct ones).

The product of its (nonzero) digits is 109350, while the sum is 45.

The square root of 109156995 is about 10447.8225004065. The cubic root of 109156995 is about 477.9148483088.

The spelling of 109156995 in words is "one hundred nine million, one hundred fifty-six thousand, nine hundred ninety-five".