167091097 has 4 divisors (see below), whose sum is σ = 167120820. Its totient is φ = 167061376.

The previous prime is 167091053. The next prime is 167091107. The reversal of 167091097 is 790190761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 790190761 = 977 ⋅808793.

It can be written as a sum of positive squares in 2 ways, for example, as 114832656 + 52258441 = 10716^2 + 7229^2 .

It is a cyclic number.

It is not a de Polignac number, because 167091097 - 2²⁷ = 32873369 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (167091037) 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 3 ways as a sum of consecutive naturals, for example, 3568 + ... + 18625.

It is an arithmetic number, because the mean of its divisors is an integer number (41780205).

Almost surely, 2^167091097 is an apocalyptic number.

It is an amenable number.

167091097 is a deficient number, since it is larger than the sum of its proper divisors (29723).

167091097 is an equidigital number, since it uses as much as digits as its factorization.

167091097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29722.

The product of its (nonzero) digits is 23814, while the sum is 40.

The square root of 167091097 is about 12926.3721515358. The cubic root of 167091097 is about 550.7879581949.

The spelling of 167091097 in words is "one hundred sixty-seven million, ninety-one thousand, ninety-seven".