85149100 has 18 divisors (see below), whose sum is σ = 184773764. Its totient is φ = 34059600.

The previous prime is 85149067. The next prime is 85149109. The reversal of 85149100 is 194158.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (85149109) 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, 425646 + ... + 425845.

Almost surely, 2^85149100 is an apocalyptic number.

It is an amenable number.

85149100 is an abundant number, since it is smaller than the sum of its proper divisors (99624664).

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

85149100 is a wasteful number, since it uses less digits than its factorization.

85149100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851505 (or 851498 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 85149100 is about 9227.6269972296. The cubic root of 85149100 is about 439.9399022602.

The spelling of 85149100 in words is "eighty-five million, one hundred forty-nine thousand, one hundred".