85479142 has 16 divisors (see below), whose sum is σ = 149301792. Its totient is φ = 35942400.

The previous prime is 85479133. The next prime is 85479151. The reversal of 85479142 is 24197458.

It is an interprime number because it is at equal distance from previous prime (85479133) and next prime (85479151).

It is a junction number, because it is equal to n+sod(n) for n = 85479095 and 85479104.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 56859 + ... + 58342.

It is an arithmetic number, because the mean of its divisors is an integer number (9331362).

Almost surely, 2^85479142 is an apocalyptic number.

85479142 is a deficient number, since it is larger than the sum of its proper divisors (63822650).

85479142 is a wasteful number, since it uses less digits than its factorization.

85479142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115263.

The product of its digits is 80640, while the sum is 40.

The square root of 85479142 is about 9245.4930641908. The cubic root of 85479142 is about 440.5075788384.

It can be divided in two parts, 8547 and 9142, that added together give a square (17689 = 133²).

The spelling of 85479142 in words is "eighty-five million, four hundred seventy-nine thousand, one hundred forty-two".