85934137 has 2 divisors, whose sum is σ = 85934138. Its totient is φ = 85934136.

The previous prime is 85934129. The next prime is 85934159. The reversal of 85934137 is 73143958.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76807696 + 9126441 = 8764^2 + 3021^2 .

It is a cyclic number.

It is not a de Polignac number, because 85934137 - 2³ = 85934129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85934137.

It is not a weakly prime, because it can be changed into another prime (85934197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42967068 + 42967069.

It is an arithmetic number, because the mean of its divisors is an integer number (42967069).

Almost surely, 2^85934137 is an apocalyptic number.

It is an amenable number.

85934137 is a deficient number, since it is larger than the sum of its proper divisors (1).

85934137 is an equidigital number, since it uses as much as digits as its factorization.

85934137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 40.

The square root of 85934137 is about 9270.0667203640. The cubic root of 85934137 is about 441.2877854472.

The spelling of 85934137 in words is "eighty-five million, nine hundred thirty-four thousand, one hundred thirty-seven".