167223157 has 2 divisors, whose sum is σ = 167223158. Its totient is φ = 167223156.

The previous prime is 167223151. The next prime is 167223181. The reversal of 167223157 is 751322761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105144516 + 62078641 = 10254^2 + 7879^2 .

It is a cyclic number.

It is not a de Polignac number, because 167223157 - 2⁷ = 167223029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (167223151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83611578 + 83611579.

It is an arithmetic number, because the mean of its divisors is an integer number (83611579).

Almost surely, 2^167223157 is an apocalyptic number.

It is an amenable number.

167223157 is a deficient number, since it is larger than the sum of its proper divisors (1).

167223157 is an equidigital number, since it uses as much as digits as its factorization.

167223157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17640, while the sum is 34.

The square root of 167223157 is about 12931.4793043951. The cubic root of 167223157 is about 550.9330245788.

The spelling of 167223157 in words is "one hundred sixty-seven million, two hundred twenty-three thousand, one hundred fifty-seven".