961205 has 16 divisors (see below), whose sum is σ = 1365120. Its totient is φ = 635712.

The previous prime is 961201. The next prime is 961241. The reversal of 961205 is 502169.

It is not a de Polignac number, because 961205 - 2² = 961201 is a prime.

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 961205.

It is not an unprimeable number, because it can be changed into a prime (961201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 542 + ... + 1488.

It is an arithmetic number, because the mean of its divisors is an integer number (85320).

2⁹⁶¹²⁰⁵ is an apocalyptic number.

It is an amenable number.

961205 is a deficient number, since it is larger than the sum of its proper divisors (403915).

961205 is a wasteful number, since it uses less digits than its factorization.

961205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 961205 is about 980.4106282574. The cubic root of 961205 is about 98.6897405151.

The spelling of 961205 in words is "nine hundred sixty-one thousand, two hundred five".