167215493 has 2 divisors, whose sum is σ = 167215494. Its totient is φ = 167215492.

The previous prime is 167215481. The next prime is 167215549. The reversal of 167215493 is 394512761.

167215493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158583649 + 8631844 = 12593^2 + 2938^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-167215493 is a prime.

It is a super-2 number, since 2×167215493² = 55922042198466098, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (167215423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83607746 + 83607747.

It is an arithmetic number, because the mean of its divisors is an integer number (83607747).

Almost surely, 2^167215493 is an apocalyptic number.

It is an amenable number.

167215493 is a deficient number, since it is larger than the sum of its proper divisors (1).

167215493 is an equidigital number, since it uses as much as digits as its factorization.

167215493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 38.

The square root of 167215493 is about 12931.1829698601. The cubic root of 167215493 is about 550.9246078513.

The spelling of 167215493 in words is "one hundred sixty-seven million, two hundred fifteen thousand, four hundred ninety-three".