85337149 has 2 divisors, whose sum is σ = 85337150. Its totient is φ = 85337148.

The previous prime is 85337117. The next prime is 85337159. The reversal of 85337149 is 94173358.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79334649 + 6002500 = 8907^2 + 2450^2 .

It is a cyclic number.

It is not a de Polignac number, because 85337149 - 2⁵ = 85337117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85337159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42668574 + 42668575.

It is an arithmetic number, because the mean of its divisors is an integer number (42668575).

Almost surely, 2^85337149 is an apocalyptic number.

It is an amenable number.

85337149 is a deficient number, since it is larger than the sum of its proper divisors (1).

85337149 is an equidigital number, since it uses as much as digits as its factorization.

85337149 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 85337149 is about 9237.8108337419. The cubic root of 85337149 is about 440.2635284286.

The spelling of 85337149 in words is "eighty-five million, three hundred thirty-seven thousand, one hundred forty-nine".