961144 has 16 divisors (see below), whose sum is σ = 1812600. Its totient is φ = 477792.

The previous prime is 961141. The next prime is 961151. The reversal of 961144 is 441169.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2347 + ... + 2725.

2⁹⁶¹¹⁴⁴ is an apocalyptic number.

It is an amenable number.

961144 is a deficient number, since it is larger than the sum of its proper divisors (851456).

961144 is a wasteful number, since it uses less digits than its factorization.

961144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702 (or 698 counting only the distinct ones).

The product of its digits is 864, while the sum is 25.

The square root of 961144 is about 980.3795183499. The cubic root of 961144 is about 98.6876527878.

Adding to 961144 its sum of digits (25), we get a palindrome (961169).

It can be divided in two parts, 961 and 144, that multiplied together give a square (138384 = 372²).

The spelling of 961144 in words is "nine hundred sixty-one thousand, one hundred forty-four".