108148691 has 16 divisors (see below), whose sum is σ = 130802688. Its totient is φ = 87410400.

The previous prime is 108148687. The next prime is 108148717. The reversal of 108148691 is 196841801.

It is not a de Polignac number, because 108148691 - 2² = 108148687 is a prime.

It is a super-2 number, since 2×108148691² = 23392278730026962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108148091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6701 + ... + 16161.

It is an arithmetic number, because the mean of its divisors is an integer number (8175168).

Almost surely, 2^108148691 is an apocalyptic number.

108148691 is a deficient number, since it is larger than the sum of its proper divisors (22653997).

108148691 is an equidigital number, since it uses as much as digits as its factorization.

108148691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9562.

The product of its (nonzero) digits is 13824, while the sum is 38.

The square root of 108148691 is about 10399.4562838641. The cubic root of 108148691 is about 476.4387637497.

The spelling of 108148691 in words is "one hundred eight million, one hundred forty-eight thousand, six hundred ninety-one".