961315 has 4 divisors (see below), whose sum is σ = 1153584. Its totient is φ = 769048.

The previous prime is 961313. The next prime is 961319. The reversal of 961315 is 513169.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 961315 - 2¹ = 961313 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 7.

It is a self number, because there is not a number n which added to its sum of digits gives 961315.

It is not an unprimeable number, because it can be changed into a prime (961313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96127 + ... + 96136.

It is an arithmetic number, because the mean of its divisors is an integer number (288396).

2⁹⁶¹³¹⁵ is an apocalyptic number.

961315 is a deficient number, since it is larger than the sum of its proper divisors (192269).

961315 is a wasteful number, since it uses less digits than its factorization.

961315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192268.

The product of its digits is 810, while the sum is 25.

The square root of 961315 is about 980.4667255955. The cubic root of 961315 is about 98.6935050458.

The spelling of 961315 in words is "nine hundred sixty-one thousand, three hundred fifteen".