961597503 has 18 divisors (see below), whose sum is σ = 1475488664. Its totient is φ = 603353664.

The previous prime is 961597499. The next prime is 961597513. The reversal of 961597503 is 305795169.

961597503 is a `hidden beast` number, since 9 + 6 + 1 + 597 + 50 + 3 = 666.

961597503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 961597503 - 2² = 961597499 is a prime.

It is a super-3 number, since 3×961597503³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961597513) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 182251 + ... + 187452.

Almost surely, 2^961597503 is an apocalyptic number.

961597503 is a deficient number, since it is larger than the sum of its proper divisors (513891161).

961597503 is a wasteful number, since it uses less digits than its factorization.

961597503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369743 (or 369723 counting only the distinct ones).

The product of its (nonzero) digits is 255150, while the sum is 45.

The square root of 961597503 is about 31009.6356476499. The cubic root of 961597503 is about 987.0317183230.

The spelling of 961597503 in words is "nine hundred sixty-one million, five hundred ninety-seven thousand, five hundred three".