959531 has 4 divisors (see below), whose sum is σ = 1015992. Its totient is φ = 903072.

The previous prime is 959489. The next prime is 959533. The reversal of 959531 is 135959.

959531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 135959 = 79 ⋅1721.

It is a cyclic number.

It is not a de Polignac number, because 959531 - 2⁶ = 959467 is a prime.

It is a super-2 number, since 2×959531² = 1841399479922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (959533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28205 + ... + 28238.

It is an arithmetic number, because the mean of its divisors is an integer number (253998).

2⁹⁵⁹⁵³¹ is an apocalyptic number.

959531 is a deficient number, since it is larger than the sum of its proper divisors (56461).

959531 is a wasteful number, since it uses less digits than its factorization.

959531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56460.

The product of its digits is 6075, while the sum is 32.

The square root of 959531 is about 979.5565323145. The cubic root of 959531 is about 98.6324157250.

The spelling of 959531 in words is "nine hundred fifty-nine thousand, five hundred thirty-one".