949718161 has 4 divisors (see below), whose sum is σ = 1085392192. Its totient is φ = 814044132.

The previous prime is 949718153. The next prime is 949718177. The reversal of 949718161 is 161817949.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 161817949 = 23 ⋅7035563.

It is a cyclic number.

It is not a de Polignac number, because 949718161 - 2³ = 949718153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (949718111) 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, 67837005 + ... + 67837018.

It is an arithmetic number, because the mean of its divisors is an integer number (271348048).

Almost surely, 2^949718161 is an apocalyptic number.

It is an amenable number.

949718161 is a deficient number, since it is larger than the sum of its proper divisors (135674031).

949718161 is a wasteful number, since it uses less digits than its factorization.

949718161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135674030.

The product of its digits is 108864, while the sum is 46.

The square root of 949718161 is about 30817.4976433844. The cubic root of 949718161 is about 982.9503484396.

The spelling of 949718161 in words is "nine hundred forty-nine million, seven hundred eighteen thousand, one hundred sixty-one".