161459959 has 2 divisors, whose sum is σ = 161459960. Its totient is φ = 161459958.

The previous prime is 161459953. The next prime is 161460001. The reversal of 161459959 is 959954161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161459959 - 2¹⁷ = 161328887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161459953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80729979 + 80729980.

It is an arithmetic number, because the mean of its divisors is an integer number (80729980).

Almost surely, 2^161459959 is an apocalyptic number.

161459959 is a deficient number, since it is larger than the sum of its proper divisors (1).

161459959 is an equidigital number, since it uses as much as digits as its factorization.

161459959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 437400, while the sum is 49.

The square root of 161459959 is about 12706.6895374051. The cubic root of 161459959 is about 544.5297506373.

The spelling of 161459959 in words is "one hundred sixty-one million, four hundred fifty-nine thousand, nine hundred fifty-nine".