85144996 has 6 divisors (see below), whose sum is σ = 149003750. Its totient is φ = 42572496.

The previous prime is 85144949. The next prime is 85144999. The reversal of 85144996 is 69944158.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 50922496 + 34222500 = 7136^2 + 5850^2 .

It is not an unprimeable number, because it can be changed into a prime (85144999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10643121 + ... + 10643128.

Almost surely, 2^85144996 is an apocalyptic number.

It is an amenable number.

85144996 is a deficient number, since it is larger than the sum of its proper divisors (63858754).

85144996 is a wasteful number, since it uses less digits than its factorization.

85144996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21286253 (or 21286251 counting only the distinct ones).

The product of its digits is 311040, while the sum is 46.

The square root of 85144996 is about 9227.4046188514. The cubic root of 85144996 is about 439.9328341003.

The spelling of 85144996 in words is "eighty-five million, one hundred forty-four thousand, nine hundred ninety-six".