161417293 has 8 divisors (see below), whose sum is σ = 172307520. Its totient is φ = 150766560.

The previous prime is 161417233. The next prime is 161417297. The reversal of 161417293 is 392714161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161417293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161417297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58480 + ... + 61177.

It is an arithmetic number, because the mean of its divisors is an integer number (21538440).

Almost surely, 2^161417293 is an apocalyptic number.

It is an amenable number.

161417293 is a deficient number, since it is larger than the sum of its proper divisors (10890227).

161417293 is a wasteful number, since it uses less digits than its factorization.

161417293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119747.

The product of its digits is 9072, while the sum is 34.

The square root of 161417293 is about 12705.0105470244. The cubic root of 161417293 is about 544.4817821849.

The spelling of 161417293 in words is "one hundred sixty-one million, four hundred seventeen thousand, two hundred ninety-three".