85241431 has 8 divisors (see below), whose sum is σ = 93060864. Its totient is φ = 77433720.

The previous prime is 85241399. The next prime is 85241447. The reversal of 85241431 is 13414258.

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

It is a cyclic number.

It is not a de Polignac number, because 85241431 - 2⁵ = 85241399 is a prime.

It is a super-2 number, since 2×85241431² = 14532203117855522, 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 85241431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85241491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20386 + ... + 24208.

It is an arithmetic number, because the mean of its divisors is an integer number (11632608).

Almost surely, 2^85241431 is an apocalyptic number.

85241431 is a deficient number, since it is larger than the sum of its proper divisors (7819433).

85241431 is a wasteful number, since it uses less digits than its factorization.

85241431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5861.

The product of its digits is 3840, while the sum is 28.

The square root of 85241431 is about 9232.6286072819. The cubic root of 85241431 is about 440.0988603619.

Adding to 85241431 its reverse (13414258), we get a palindrome (98655689).

The spelling of 85241431 in words is "eighty-five million, two hundred forty-one thousand, four hundred thirty-one".