110161997 has 4 divisors (see below), whose sum is σ = 120176736. Its totient is φ = 100147260.

The previous prime is 110161979. The next prime is 110162009. The reversal of 110161997 is 799161011.

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, and also an emirpimes, since its reverse is a distinct semiprime: 799161011 = 11 ⋅72651001.

It is a cyclic number.

It is not a de Polignac number, because 110161997 - 2⁸ = 110161741 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 (110161397) 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, 5007353 + ... + 5007374.

It is an arithmetic number, because the mean of its divisors is an integer number (30044184).

Almost surely, 2^110161997 is an apocalyptic number.

It is an amenable number.

110161997 is a deficient number, since it is larger than the sum of its proper divisors (10014739).

110161997 is a wasteful number, since it uses less digits than its factorization.

110161997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10014738.

The product of its (nonzero) digits is 3402, while the sum is 35.

The square root of 110161997 is about 10495.8085443667. The cubic root of 110161997 is about 479.3770811365.

The spelling of 110161997 in words is "one hundred ten million, one hundred sixty-one thousand, nine hundred ninety-seven".