85135737 has 4 divisors (see below), whose sum is σ = 113514320. Its totient is φ = 56757156.

The previous prime is 85135733. The next prime is 85135741. The reversal of 85135737 is 73753158.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (85135733) and next prime (85135741).

It is not a de Polignac number, because 85135737 - 2² = 85135733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85135695 and 85135704.

It is not an unprimeable number, because it can be changed into a prime (85135733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14189287 + ... + 14189292.

It is an arithmetic number, because the mean of its divisors is an integer number (28378580).

Almost surely, 2^85135737 is an apocalyptic number.

It is an amenable number.

85135737 is a deficient number, since it is larger than the sum of its proper divisors (28378583).

85135737 is a wasteful number, since it uses less digits than its factorization.

85135737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28378582.

The product of its digits is 88200, while the sum is 39.

The square root of 85135737 is about 9226.9028931706. The cubic root of 85135737 is about 439.9168868497.

The spelling of 85135737 in words is "eighty-five million, one hundred thirty-five thousand, seven hundred thirty-seven".