961975213 has 4 divisors (see below), whose sum is σ = 976333120. Its totient is φ = 947617308.

The previous prime is 961975193. The next prime is 961975241. The reversal of 961975213 is 312579169.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 961975213 - 2¹³ = 961967021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 961975213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961970213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7178853 + ... + 7178986.

It is an arithmetic number, because the mean of its divisors is an integer number (244083280).

Almost surely, 2^961975213 is an apocalyptic number.

It is an amenable number.

961975213 is a deficient number, since it is larger than the sum of its proper divisors (14357907).

961975213 is a wasteful number, since it uses less digits than its factorization.

961975213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14357906.

The product of its digits is 102060, while the sum is 43.

The square root of 961975213 is about 31015.7252534904. The cubic root of 961975213 is about 987.1609348774.

The spelling of 961975213 in words is "nine hundred sixty-one million, nine hundred seventy-five thousand, two hundred thirteen".