167215423 has 2 divisors, whose sum is σ = 167215424. Its totient is φ = 167215422.

The previous prime is 167215397. The next prime is 167215459. The reversal of 167215423 is 324512761.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-167215423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (167215463) 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 as a sum of consecutive naturals, namely, 83607711 + 83607712.

It is an arithmetic number, because the mean of its divisors is an integer number (83607712).

Almost surely, 2^167215423 is an apocalyptic number.

167215423 is a deficient number, since it is larger than the sum of its proper divisors (1).

167215423 is an equidigital number, since it uses as much as digits as its factorization.

167215423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 31.

The square root of 167215423 is about 12931.1802632242. The cubic root of 167215423 is about 550.9245309750.

The spelling of 167215423 in words is "one hundred sixty-seven million, two hundred fifteen thousand, four hundred twenty-three".