167161549 has 2 divisors, whose sum is σ = 167161550. Its totient is φ = 167161548.

The previous prime is 167161541. The next prime is 167161571. The reversal of 167161549 is 945161761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121396324 + 45765225 = 11018^2 + 6765^2 .

It is a cyclic number.

It is not a de Polignac number, because 167161549 - 2³ = 167161541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (167161541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83580774 + 83580775.

It is an arithmetic number, because the mean of its divisors is an integer number (83580775).

Almost surely, 2^167161549 is an apocalyptic number.

It is an amenable number.

167161549 is a deficient number, since it is larger than the sum of its proper divisors (1).

167161549 is an equidigital number, since it uses as much as digits as its factorization.

167161549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 40.

The square root of 167161549 is about 12929.0969908962. The cubic root of 167161549 is about 550.8653584104.

The spelling of 167161549 in words is "one hundred sixty-seven million, one hundred sixty-one thousand, five hundred forty-nine".