108182661 has 4 divisors (see below), whose sum is σ = 144243552. Its totient is φ = 72121772.

The previous prime is 108182647. The next prime is 108182663. The reversal of 108182661 is 166281801.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108182661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108182663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18030441 + ... + 18030446.

It is an arithmetic number, because the mean of its divisors is an integer number (36060888).

Almost surely, 2^108182661 is an apocalyptic number.

It is an amenable number.

108182661 is a deficient number, since it is larger than the sum of its proper divisors (36060891).

108182661 is an equidigital number, since it uses as much as digits as its factorization.

108182661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36060890.

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 108182661 is about 10401.0894140950. The cubic root of 108182661 is about 476.4886423949.

The spelling of 108182661 in words is "one hundred eight million, one hundred eighty-two thousand, six hundred sixty-one".