85252149 has 8 divisors (see below), whose sum is σ = 126299520. Its totient is φ = 56834748.

The previous prime is 85252147. The next prime is 85252171. The reversal of 85252149 is 94125258.

It is not a de Polignac number, because 85252149 - 2¹ = 85252147 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85252147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1578717 + ... + 1578770.

It is an arithmetic number, because the mean of its divisors is an integer number (15787440).

Almost surely, 2^85252149 is an apocalyptic number.

It is an amenable number.

85252149 is a deficient number, since it is larger than the sum of its proper divisors (41047371).

85252149 is a wasteful number, since it uses less digits than its factorization.

85252149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3157496 (or 3157490 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 85252149 is about 9233.2090304509. The cubic root of 85252149 is about 440.1173051559.

The spelling of 85252149 in words is "eighty-five million, two hundred fifty-two thousand, one hundred forty-nine".