968243531 has 4 divisors (see below), whose sum is σ = 968316000. Its totient is φ = 968171064.

The previous prime is 968243519. The next prime is 968243537. The reversal of 968243531 is 135342869.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 135342869 = 31 ⋅4365899.

It is a cyclic number.

It is not a de Polignac number, because 968243531 - 2⁶ = 968243467 is a prime.

It is a super-2 number, since 2×968243531² = 1874991070646695922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (968243537) 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, 9731 + ... + 45068.

It is an arithmetic number, because the mean of its divisors is an integer number (242079000).

Almost surely, 2^968243531 is an apocalyptic number.

968243531 is a deficient number, since it is larger than the sum of its proper divisors (72469).

968243531 is a wasteful number, since it uses less digits than its factorization.

968243531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72468.

The product of its digits is 155520, while the sum is 41.

The square root of 968243531 is about 31116.6118174842. The cubic root of 968243531 is about 989.3004380039.

The spelling of 968243531 in words is "nine hundred sixty-eight million, two hundred forty-three thousand, five hundred thirty-one".