161675279 has 2 divisors, whose sum is σ = 161675280. Its totient is φ = 161675278.

The previous prime is 161675273. The next prime is 161675309. The reversal of 161675279 is 972576161.

161675279 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 is a cyclic number.

It is not a de Polignac number, because 161675279 - 2¹² = 161671183 is a prime.

It is a super-2 number, since 2×161675279² = 52277791679455682, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161675273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80837639 + 80837640.

It is an arithmetic number, because the mean of its divisors is an integer number (80837640).

Almost surely, 2^161675279 is an apocalyptic number.

161675279 is a deficient number, since it is larger than the sum of its proper divisors (1).

161675279 is an equidigital number, since it uses as much as digits as its factorization.

161675279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 158760, while the sum is 44.

The square root of 161675279 is about 12715.1594170109. The cubic root of 161675279 is about 544.7717013666.

The spelling of 161675279 in words is "one hundred sixty-one million, six hundred seventy-five thousand, two hundred seventy-nine".