161174863 has 2 divisors, whose sum is σ = 161174864. Its totient is φ = 161174862.

The previous prime is 161174861. The next prime is 161174887. The reversal of 161174863 is 368471161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161174863 - 2¹ = 161174861 is a prime.

Together with 161174861, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161174861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80587431 + 80587432.

It is an arithmetic number, because the mean of its divisors is an integer number (80587432).

Almost surely, 2^161174863 is an apocalyptic number.

161174863 is a deficient number, since it is larger than the sum of its proper divisors (1).

161174863 is an equidigital number, since it uses as much as digits as its factorization.

161174863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 37.

The square root of 161174863 is about 12695.4662379922. The cubic root of 161174863 is about 544.2090628386.

The spelling of 161174863 in words is "one hundred sixty-one million, one hundred seventy-four thousand, eight hundred sixty-three".