85121070 has 32 divisors (see below), whose sum is σ = 207757440. Its totient is φ = 22313760.

The previous prime is 85121059. The next prime is 85121087. The reversal of 85121070 is 7012158.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 85121070.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22276 + ... + 25815.

It is an arithmetic number, because the mean of its divisors is an integer number (6492420).

Almost surely, 2^85121070 is an apocalyptic number.

85121070 is an abundant number, since it is smaller than the sum of its proper divisors (122636370).

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

85121070 is a wasteful number, since it uses less digits than its factorization.

85121070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48160.

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 85121070 is about 9226.1080635336. The cubic root of 85121070 is about 439.8916227566.

The spelling of 85121070 in words is "eighty-five million, one hundred twenty-one thousand, seventy".