85297135 has 32 divisors (see below), whose sum is σ = 128738304. Its totient is φ = 53143200.

The previous prime is 85297129. The next prime is 85297139. The reversal of 85297135 is 53179258.

It is not a de Polignac number, because 85297135 - 2⁹ = 85296623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85297139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45670 + ... + 47500.

It is an arithmetic number, because the mean of its divisors is an integer number (4023072).

Almost surely, 2^85297135 is an apocalyptic number.

85297135 is a deficient number, since it is larger than the sum of its proper divisors (43441169).

85297135 is a wasteful number, since it uses less digits than its factorization.

85297135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1876 (or 1854 counting only the distinct ones).

The product of its digits is 75600, while the sum is 40.

The square root of 85297135 is about 9235.6448069423. The cubic root of 85297135 is about 440.1947054943.

The spelling of 85297135 in words is "eighty-five million, two hundred ninety-seven thousand, one hundred thirty-five".