5949191161 has 9 divisors (see below), whose sum is σ = 6003596431. Its totient is φ = 5895276592.

The previous prime is 5949191147. The next prime is 5949191173. The reversal of 5949191161 is 1611919495.

The square root of 5949191161 is 77131.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 3494583225 + 2454607936 = 59115^2 + 49544^2 .

It is not a de Polignac number, because 5949191161 - 2²⁵ = 5915636729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5949191461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 10566666 + ... + 10567228.

Almost surely, 2^5949191161 is an apocalyptic number.

5949191161 is the 77131-st square number.

5949191161 is the 38566-th centered octagonal number.

It is an amenable number.

5949191161 is a deficient number, since it is larger than the sum of its proper divisors (54405270).

5949191161 is an frugal number, since it uses more digits than its factorization.

5949191161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400 (or 700 counting only the distinct ones).

The product of its digits is 87480, while the sum is 46.

The cubic root of 5949191161 is about 1811.9768356167.

The spelling of 5949191161 in words is "five billion, nine hundred forty-nine million, one hundred ninety-one thousand, one hundred sixty-one".