961243245 has 24 divisors (see below), whose sum is σ = 1697596056. Its totient is φ = 502988928.

The previous prime is 961243229. The next prime is 961243249. The reversal of 961243245 is 542342169.

It is a happy number.

961243245 is a `hidden beast` number, since 9 + 612 + 4 + 32 + 4 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 392277636 + 568965609 = 19806^2 + 23853^2 .

It is not a de Polignac number, because 961243245 - 2⁴ = 961243229 is a prime.

It is a super-3 number, since 3×961243245³ (a number of 28 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961243249) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 199134 + ... + 203903.

It is an arithmetic number, because the mean of its divisors is an integer number (70733169).

Almost surely, 2^961243245 is an apocalyptic number.

It is an amenable number.

961243245 is a deficient number, since it is larger than the sum of its proper divisors (736352811).

961243245 is a wasteful number, since it uses less digits than its factorization.

961243245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403101 (or 403098 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 961243245 is about 31003.9230582196. The cubic root of 961243245 is about 986.9104940653.

The spelling of 961243245 in words is "nine hundred sixty-one million, two hundred forty-three thousand, two hundred forty-five".