961230257 has 12 divisors (see below), whose sum is σ = 1042274304. Its totient is φ = 886083120.

The previous prime is 961230247. The next prime is 961230271. The reversal of 961230257 is 752032169.

It is not a de Polignac number, because 961230257 - 2¹⁰ = 961229233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (961230227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 135632 + ... + 142542.

It is an arithmetic number, because the mean of its divisors is an integer number (86856192).

Almost surely, 2^961230257 is an apocalyptic number.

It is an amenable number.

961230257 is a deficient number, since it is larger than the sum of its proper divisors (81044047).

961230257 is a wasteful number, since it uses less digits than its factorization.

961230257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7760 (or 7747 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 961230257 is about 31003.7136001480. The cubic root of 961230257 is about 986.9060491095.

The spelling of 961230257 in words is "nine hundred sixty-one million, two hundred thirty thousand, two hundred fifty-seven".