85877145 has 32 divisors (see below), whose sum is σ = 153066240. Its totient is φ = 45682560.

The previous prime is 85877137. The next prime is 85877159. The reversal of 85877145 is 54177858.

It is a happy number.

It is not a de Polignac number, because 85877145 - 2³ = 85877137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 85877145.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82780 + ... + 83810.

It is an arithmetic number, because the mean of its divisors is an integer number (4783320).

Almost surely, 2^85877145 is an apocalyptic number.

It is an amenable number.

85877145 is a deficient number, since it is larger than the sum of its proper divisors (67189095).

85877145 is a wasteful number, since it uses less digits than its factorization.

85877145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662 (or 1656 counting only the distinct ones).

The product of its digits is 313600, while the sum is 45.

The square root of 85877145 is about 9266.9922304920. The cubic root of 85877145 is about 441.1902090310.

The spelling of 85877145 in words is "eighty-five million, eight hundred seventy-seven thousand, one hundred forty-five".