985341531 has 4 divisors (see below), whose sum is σ = 1313788712. Its totient is φ = 656894352.

The previous prime is 985341529. The next prime is 985341563. The reversal of 985341531 is 135143589.

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

It is not a de Polignac number, because 985341531 - 2¹ = 985341529 is a prime.

It is a super-2 number, since 2×985341531² = 1941795865426847922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 985341531.

It is not an unprimeable number, because it can be changed into a prime (985342531) 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 3 ways as a sum of consecutive naturals, for example, 164223586 + ... + 164223591.

It is an arithmetic number, because the mean of its divisors is an integer number (328447178).

Almost surely, 2^985341531 is an apocalyptic number.

985341531 is a deficient number, since it is larger than the sum of its proper divisors (328447181).

985341531 is a wasteful number, since it uses less digits than its factorization.

985341531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328447180.

The product of its digits is 64800, while the sum is 39.

The square root of 985341531 is about 31390.1502226415. The cubic root of 985341531 is about 995.0897727979.

The spelling of 985341531 in words is "nine hundred eighty-five million, three hundred forty-one thousand, five hundred thirty-one".