85254138 has 12 divisors (see below), whose sum is σ = 184717338. Its totient is φ = 28418040.

The previous prime is 85254137. The next prime is 85254151. The reversal of 85254138 is 83145258.

It is a happy number.

85254138 is a `hidden beast` number, since 85 + 2 + 541 + 38 = 666.

It can be written as a sum of positive squares in only one way, i.e., 79334649 + 5919489 = 8907^2 + 2433^2 .

It is a super-2 number, since 2×85254138² = 14536536092246088, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (85254131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2368153 + ... + 2368188.

Almost surely, 2^85254138 is an apocalyptic number.

85254138 is an abundant number, since it is smaller than the sum of its proper divisors (99463200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85254138 is a wasteful number, since it uses less digits than its factorization.

85254138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4736349 (or 4736346 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 85254138 is about 9233.3167388539. The cubic root of 85254138 is about 440.1207278907.

The spelling of 85254138 in words is "eighty-five million, two hundred fifty-four thousand, one hundred thirty-eight".