108665157 has 4 divisors (see below), whose sum is σ = 144886880. Its totient is φ = 72443436.

The previous prime is 108665153. The next prime is 108665159. The reversal of 108665157 is 751566801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 108665157 - 2² = 108665153 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108665153) 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, 18110857 + ... + 18110862.

It is an arithmetic number, because the mean of its divisors is an integer number (36221720).

Almost surely, 2^108665157 is an apocalyptic number.

It is an amenable number.

108665157 is a deficient number, since it is larger than the sum of its proper divisors (36221723).

108665157 is an equidigital number, since it uses as much as digits as its factorization.

108665157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36221722.

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 108665157 is about 10424.2581030978. The cubic root of 108665157 is about 477.1959736033.

The spelling of 108665157 in words is "one hundred eight million, six hundred sixty-five thousand, one hundred fifty-seven".