161560283 has 2 divisors, whose sum is σ = 161560284. Its totient is φ = 161560282.

The previous prime is 161560277. The next prime is 161560297. The reversal of 161560283 is 382065161.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161560283 - 2²⁶ = 94451419 is a prime.

It is a super-2 number, since 2×161560283² = 52203450086080178, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (161560183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80780141 + 80780142.

It is an arithmetic number, because the mean of its divisors is an integer number (80780142).

Almost surely, 2^161560283 is an apocalyptic number.

161560283 is a deficient number, since it is larger than the sum of its proper divisors (1).

161560283 is an equidigital number, since it uses as much as digits as its factorization.

161560283 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 161560283 is about 12710.6366087620. The cubic root of 161560283 is about 544.6425094335.

The spelling of 161560283 in words is "one hundred sixty-one million, five hundred sixty thousand, two hundred eighty-three".