161914898 has 8 divisors (see below), whose sum is σ = 243796608. Its totient is φ = 80649364.

The previous prime is 161914897. The next prime is 161914901. The reversal of 161914898 is 898419161.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (161914897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153386 + ... + 154437.

It is an arithmetic number, because the mean of its divisors is an integer number (30474576).

Almost surely, 2^161914898 is an apocalyptic number.

161914898 is a deficient number, since it is larger than the sum of its proper divisors (81881710).

161914898 is a wasteful number, since it uses less digits than its factorization.

161914898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308088.

The product of its digits is 124416, while the sum is 47.

The square root of 161914898 is about 12724.5784998954. The cubic root of 161914898 is about 545.0407039711.

The spelling of 161914898 in words is "one hundred sixty-one million, nine hundred fourteen thousand, eight hundred ninety-eight".