168970099 has 4 divisors (see below), whose sum is σ = 169982064. Its totient is φ = 167958136.

The previous prime is 168970079. The next prime is 168970111. The reversal of 168970099 is 990079861.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 168970099 - 2¹⁵ = 168937331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168970079) 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, 505732 + ... + 506065.

It is an arithmetic number, because the mean of its divisors is an integer number (42495516).

Almost surely, 2^168970099 is an apocalyptic number.

168970099 is a deficient number, since it is larger than the sum of its proper divisors (1011965).

168970099 is a wasteful number, since it uses less digits than its factorization.

168970099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011964.

The product of its (nonzero) digits is 244944, while the sum is 49.

The square root of 168970099 is about 12998.8499106652. The cubic root of 168970099 is about 552.8448727591.

The spelling of 168970099 in words is "one hundred sixty-eight million, nine hundred seventy thousand, ninety-nine".