168772069 has 4 divisors (see below), whose sum is σ = 168892096. Its totient is φ = 168652044.

The previous prime is 168772061. The next prime is 168772103. The reversal of 168772069 is 960277861.

It is a happy number.

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 not a de Polignac number, because 168772069 - 2³ = 168772061 is a prime.

It is a super-2 number, since 2×168772069² = 56968022549081522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168772061) 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, 57879 + ... + 60724.

It is an arithmetic number, because the mean of its divisors is an integer number (42223024).

Almost surely, 2^168772069 is an apocalyptic number.

It is an amenable number.

168772069 is a deficient number, since it is larger than the sum of its proper divisors (120027).

168772069 is a wasteful number, since it uses less digits than its factorization.

168772069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120026.

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 168772069 is about 12991.2304652023. The cubic root of 168772069 is about 552.6288134915.

The spelling of 168772069 in words is "one hundred sixty-eight million, seven hundred seventy-two thousand, sixty-nine".