961140 has 48 divisors (see below), whose sum is σ = 2737728. Its totient is φ = 251904.

The previous prime is 961139. The next prime is 961141. The reversal of 961140 is 41169.

It is an interprime number because it is at equal distance from previous prime (961139) and next prime (961141).

It is a nialpdrome in base 16.

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 15 ways as a sum of consecutive naturals, for example, 4884 + ... + 5076.

It is an arithmetic number, because the mean of its divisors is an integer number (57036).

2⁹⁶¹¹⁴⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 961140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1368864).

961140 is an abundant number, since it is smaller than the sum of its proper divisors (1776588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

961140 is a wasteful number, since it uses less digits than its factorization.

961140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 961140 is about 980.3774783215. The cubic root of 961140 is about 98.6875158846.

The spelling of 961140 in words is "nine hundred sixty-one thousand, one hundred forty".