85136745 has 16 divisors (see below), whose sum is σ = 136454400. Its totient is φ = 45327744.

The previous prime is 85136743. The next prime is 85136747. The reversal of 85136745 is 54763158.

It is an interprime number because it is at equal distance from previous prime (85136743) and next prime (85136747).

It is not a de Polignac number, because 85136745 - 2¹ = 85136743 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (85136743) 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, 4656 + ... + 13854.

It is an arithmetic number, because the mean of its divisors is an integer number (8528400).

Almost surely, 2^85136745 is an apocalyptic number.

It is an amenable number.

85136745 is a deficient number, since it is larger than the sum of its proper divisors (51317655).

85136745 is a wasteful number, since it uses less digits than its factorization.

85136745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9824.

The product of its digits is 100800, while the sum is 39.

The square root of 85136745 is about 9226.9575158879. The cubic root of 85136745 is about 439.9186230358.

The spelling of 85136745 in words is "eighty-five million, one hundred thirty-six thousand, seven hundred forty-five".