109161627 has 4 divisors (see below), whose sum is σ = 145548840. Its totient is φ = 72774416.

The previous prime is 109161617. The next prime is 109161761. The reversal of 109161627 is 726161901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 726161901 = 3 ⋅242053967.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109161627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109161617) 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 3 ways as a sum of consecutive naturals, for example, 18193602 + ... + 18193607.

It is an arithmetic number, because the mean of its divisors is an integer number (36387210).

Almost surely, 2^109161627 is an apocalyptic number.

109161627 is a deficient number, since it is larger than the sum of its proper divisors (36387213).

109161627 is an equidigital number, since it uses as much as digits as its factorization.

109161627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36387212.

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 109161627 is about 10448.0441710399. The cubic root of 109161627 is about 477.9216082062.

The spelling of 109161627 in words is "one hundred nine million, one hundred sixty-one thousand, six hundred twenty-seven".