85136404 has 12 divisors (see below), whose sum is σ = 150875200. Its totient is φ = 42029208.

The previous prime is 85136399. The next prime is 85136407. The reversal of 85136404 is 40463158.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85136407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134394 + ... + 135025.

Almost surely, 2^85136404 is an apocalyptic number.

It is an amenable number.

85136404 is a deficient number, since it is larger than the sum of its proper divisors (65738796).

85136404 is a wasteful number, since it uses less digits than its factorization.

85136404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269502 (or 269500 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 85136404 is about 9226.9390374056. The cubic root of 85136404 is about 439.9180356966.

The spelling of 85136404 in words is "eighty-five million, one hundred thirty-six thousand, four hundred four".