961143049 has 8 divisors (see below), whose sum is σ = 966413448. Its totient is φ = 955887360.

The previous prime is 961143011. The next prime is 961143097. The reversal of 961143049 is 940341169.

It can be written as a sum of positive squares in 4 ways, for example, as 126337600 + 834805449 = 11240^2 + 28893^2 .

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 961143049 - 2⁷ = 961142921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 961142999 and 961143017.

It is not an unprimeable number, because it can be changed into a prime (961143349) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 142849 + ... + 149425.

It is an arithmetic number, because the mean of its divisors is an integer number (120801681).

Almost surely, 2^961143049 is an apocalyptic number.

It is an amenable number.

961143049 is a deficient number, since it is larger than the sum of its proper divisors (5270399).

961143049 is a wasteful number, since it uses less digits than its factorization.

961143049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7355.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 961143049 is about 31002.3071560811. The cubic root of 961143049 is about 986.8762023913.

The spelling of 961143049 in words is "nine hundred sixty-one million, one hundred forty-three thousand, forty-nine".