167109993 has 16 divisors (see below), whose sum is σ = 251268160. Its totient is φ = 109742688.

The previous prime is 167109991. The next prime is 167110001. The reversal of 167109993 is 399901761.

It is not a de Polignac number, because 167109993 - 2¹ = 167109991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (167109991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44380 + ... + 47997.

It is an arithmetic number, because the mean of its divisors is an integer number (15704260).

Almost surely, 2^167109993 is an apocalyptic number.

It is an amenable number.

167109993 is a deficient number, since it is larger than the sum of its proper divisors (84158167).

167109993 is an equidigital number, since it uses as much as digits as its factorization.

167109993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92453 (or 92447 counting only the distinct ones).

The product of its (nonzero) digits is 91854, while the sum is 45.

The square root of 167109993 is about 12927.1030397379. The cubic root of 167109993 is about 550.8087199174.

The spelling of 167109993 in words is "one hundred sixty-seven million, one hundred nine thousand, nine hundred ninety-three".