85129413 has 16 divisors (see below), whose sum is σ = 118039680. Its totient is φ = 54506816.

The previous prime is 85129409. The next prime is 85129423. The reversal of 85129413 is 31492158.

It is a cyclic number.

It is not a de Polignac number, because 85129413 - 2² = 85129409 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85129423) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 14656 + ... + 19622.

It is an arithmetic number, because the mean of its divisors is an integer number (7377480).

Almost surely, 2^85129413 is an apocalyptic number.

It is an amenable number.

85129413 is a deficient number, since it is larger than the sum of its proper divisors (32910267).

85129413 is a wasteful number, since it uses less digits than its factorization.

85129413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5196.

The product of its digits is 8640, while the sum is 33.

The square root of 85129413 is about 9226.5601932681. The cubic root of 85129413 is about 439.9059940355.

The spelling of 85129413 in words is "eighty-five million, one hundred twenty-nine thousand, four hundred thirteen".