961256413 has 6 divisors (see below), whose sum is σ = 1035319614. Its totient is φ = 887210424.

The previous prime is 961256407. The next prime is 961256419. The reversal of 961256413 is 314652169.

It is an interprime number because it is at equal distance from previous prime (961256407) and next prime (961256419).

It can be written as a sum of positive squares in only one way, i.e., 665485209 + 295771204 = 25797^2 + 17198^2 .

It is a de Polignac number, because none of the positive numbers 2^k-961256413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961256419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 107488 + ... + 116086.

It is an arithmetic number, because the mean of its divisors is an integer number (172553269).

Almost surely, 2^961256413 is an apocalyptic number.

It is an amenable number.

961256413 is a deficient number, since it is larger than the sum of its proper divisors (74063201).

961256413 is an frugal number, since it uses more digits than its factorization.

961256413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17211 (or 8612 counting only the distinct ones).

The product of its digits is 38880, while the sum is 37.

The square root of 961256413 is about 31004.1354177148. The cubic root of 961256413 is about 986.9150005826.

The spelling of 961256413 in words is "nine hundred sixty-one million, two hundred fifty-six thousand, four hundred thirteen".