161914849 has 8 divisors (see below), whose sum is σ = 166540928. Its totient is φ = 157302000.

The previous prime is 161914847. The next prime is 161914897. The reversal of 161914849 is 948419161.

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

It is a cyclic number.

It is not a de Polignac number, because 161914849 - 2¹ = 161914847 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161914847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24874 + ... + 30700.

It is an arithmetic number, because the mean of its divisors is an integer number (20817616).

Almost surely, 2^161914849 is an apocalyptic number.

It is an amenable number.

161914849 is a deficient number, since it is larger than the sum of its proper divisors (4626079).

161914849 is an equidigital number, since it uses as much as digits as its factorization.

161914849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6615.

The product of its digits is 62208, while the sum is 43.

The square root of 161914849 is about 12724.5765744877. The cubic root of 161914849 is about 545.0406489895.

The spelling of 161914849 in words is "one hundred sixty-one million, nine hundred fourteen thousand, eight hundred forty-nine".