168102997 has 4 divisors (see below), whose sum is σ = 168129376. Its totient is φ = 168076620.

The previous prime is 168102989. The next prime is 168103009. The reversal of 168102997 is 799201861.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 799201861 = 23 ⋅34747907.

It is a cyclic number.

It is not a de Polignac number, because 168102997 - 2³ = 168102989 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 (168102967) 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, 2968 + ... + 18574.

It is an arithmetic number, because the mean of its divisors is an integer number (42032344).

Almost surely, 2^168102997 is an apocalyptic number.

It is an amenable number.

168102997 is a deficient number, since it is larger than the sum of its proper divisors (26379).

168102997 is a wasteful number, since it uses less digits than its factorization.

168102997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26378.

The product of its (nonzero) digits is 54432, while the sum is 43.

The square root of 168102997 is about 12965.4539835673. The cubic root of 168102997 is about 551.8975745073.

The spelling of 168102997 in words is "one hundred sixty-eight million, one hundred two thousand, nine hundred ninety-seven".