161167498 has 8 divisors (see below), whose sum is σ = 242789508. Its totient is φ = 80237664.

The previous prime is 161167459. The next prime is 161167507. The reversal of 161167498 is 894761161.

It can be written as a sum of positive squares in 2 ways, for example, as 147306769 + 13860729 = 12137^2 + 3723^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 172461 + ... + 173392.

Almost surely, 2^161167498 is an apocalyptic number.

161167498 is a deficient number, since it is larger than the sum of its proper divisors (81622010).

161167498 is a wasteful number, since it uses less digits than its factorization.

161167498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346088.

The product of its digits is 72576, while the sum is 43.

The square root of 161167498 is about 12695.1761704988. The cubic root of 161167498 is about 544.2007733723.

The spelling of 161167498 in words is "one hundred sixty-one million, one hundred sixty-seven thousand, four hundred ninety-eight".