961000331 has 4 divisors (see below), whose sum is σ = 966754992. Its totient is φ = 955245672.

The previous prime is 961000309. The next prime is 961000333. The reversal of 961000331 is 133000169.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 961000331 - 2⁶ = 961000267 is a prime.

It is a super-2 number, since 2×961000331² = 1847043272364219122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 961000297 and 961000306.

It is not an unprimeable number, because it can be changed into a prime (961000333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2877080 + ... + 2877413.

It is an arithmetic number, because the mean of its divisors is an integer number (241688748).

Almost surely, 2^961000331 is an apocalyptic number.

961000331 is a deficient number, since it is larger than the sum of its proper divisors (5754661).

961000331 is a wasteful number, since it uses less digits than its factorization.

961000331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5754660.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 961000331 is about 31000.0053387092. The cubic root of 961000331 is about 986.8273536205.

The spelling of 961000331 in words is "nine hundred sixty-one million, three hundred thirty-one", and thus it is an aban number.