85754149 has 6 divisors (see below), whose sum is σ = 92858226. Its totient is φ = 79157520.

The previous prime is 85754147. The next prime is 85754161. The reversal of 85754149 is 94145758.

It can be written as a sum of positive squares in 3 ways, for example, as 3724900 + 82029249 = 1930^2 + 9057^2 .

It is not a de Polignac number, because 85754149 - 2¹ = 85754147 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 (85754147) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 253542 + ... + 253879.

It is an arithmetic number, because the mean of its divisors is an integer number (15476371).

Almost surely, 2^85754149 is an apocalyptic number.

It is an amenable number.

85754149 is a deficient number, since it is larger than the sum of its proper divisors (7104077).

85754149 is a wasteful number, since it uses less digits than its factorization.

85754149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507447 (or 507434 counting only the distinct ones).

The product of its digits is 201600, while the sum is 43.

The square root of 85754149 is about 9260.3536109589. The cubic root of 85754149 is about 440.9794794743.

The spelling of 85754149 in words is "eighty-five million, seven hundred fifty-four thousand, one hundred forty-nine".