161182494 has 32 divisors (see below), whose sum is σ = 390746880. Its totient is φ = 48843000.

The previous prime is 161182481. The next prime is 161182517. The reversal of 161182494 is 494281161.

161182494 is a `hidden beast` number, since 161 + 1 + 8 + 2 + 494 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135082 + ... + 136269.

It is an arithmetic number, because the mean of its divisors is an integer number (12210840).

Almost surely, 2^161182494 is an apocalyptic number.

161182494 is an abundant number, since it is smaller than the sum of its proper divisors (229564386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161182494 is a wasteful number, since it uses less digits than its factorization.

161182494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271373 (or 271367 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 161182494 is about 12695.7667747954. The cubic root of 161182494 is about 544.2176514273.

The spelling of 161182494 in words is "one hundred sixty-one million, one hundred eighty-two thousand, four hundred ninety-four".