85144345 has 16 divisors (see below), whose sum is σ = 120036672. Its totient is φ = 57159360.

The previous prime is 85144291. The next prime is 85144351. The reversal of 85144345 is 54344158.

It is not a de Polignac number, because 85144345 - 2⁹ = 85143833 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85144345.

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, 58827 + ... + 60256.

It is an arithmetic number, because the mean of its divisors is an integer number (7502292).

Almost surely, 2^85144345 is an apocalyptic number.

It is an amenable number.

85144345 is a deficient number, since it is larger than the sum of its proper divisors (34892327).

85144345 is a wasteful number, since it uses less digits than its factorization.

85144345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119112.

The product of its digits is 38400, while the sum is 34.

The square root of 85144345 is about 9227.3693434261. The cubic root of 85144345 is about 439.9317128874.

The spelling of 85144345 in words is "eighty-five million, one hundred forty-four thousand, three hundred forty-five".