85301531 has 8 divisors (see below), whose sum is σ = 97543680. Its totient is φ = 73073448.

The previous prime is 85301527. The next prime is 85301537. The reversal of 85301531 is 13510358.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85301531 - 2² = 85301527 is a prime.

It is a super-2 number, since 2×85301531² = 14552702381887922, 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 85301531.

It is not an unprimeable number, because it can be changed into a prime (85301537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19880 + ... + 23786.

It is an arithmetic number, because the mean of its divisors is an integer number (12192960).

Almost surely, 2^85301531 is an apocalyptic number.

85301531 is a deficient number, since it is larger than the sum of its proper divisors (12242149).

85301531 is a wasteful number, since it uses less digits than its factorization.

85301531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7033.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 85301531 is about 9235.8827948388. The cubic root of 85301531 is about 440.2022675408.

Adding to 85301531 its reverse (13510358), we get a palindrome (98811889).

The spelling of 85301531 in words is "eighty-five million, three hundred one thousand, five hundred thirty-one".