65231085 has 16 divisors (see below), whose sum is σ = 109863360. Its totient is φ = 32958720.

The previous prime is 65231083. The next prime is 65231087. The reversal of 65231085 is 58013256.

It is an interprime number because it is at equal distance from previous prime (65231083) and next prime (65231087).

It is not a de Polignac number, because 65231085 - 2¹ = 65231083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65231083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114156 + ... + 114725.

It is an arithmetic number, because the mean of its divisors is an integer number (6866460).

Almost surely, 2^65231085 is an apocalyptic number.

It is an amenable number.

65231085 is a deficient number, since it is larger than the sum of its proper divisors (44632275).

65231085 is a wasteful number, since it uses less digits than its factorization.

65231085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228908.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 65231085 is about 8076.5763167322. The cubic root of 65231085 is about 402.5484889438.

The spelling of 65231085 in words is "sixty-five million, two hundred thirty-one thousand, eighty-five".