85213155 has 8 divisors (see below), whose sum is σ = 136341072. Its totient is φ = 45447008.

The previous prime is 85213153. The next prime is 85213159. The reversal of 85213155 is 55131258.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85213155 - 2¹ = 85213153 is a prime.

It is a super-2 number, since 2×85213155² = 14522563570108050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85213151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2840424 + ... + 2840453.

It is an arithmetic number, because the mean of its divisors is an integer number (17042634).

Almost surely, 2^85213155 is an apocalyptic number.

85213155 is a deficient number, since it is larger than the sum of its proper divisors (51127917).

85213155 is a wasteful number, since it uses less digits than its factorization.

85213155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5680885.

The product of its digits is 6000, while the sum is 30.

The square root of 85213155 is about 9231.0971720592. The cubic root of 85213155 is about 440.0501922769.

The spelling of 85213155 in words is "eighty-five million, two hundred thirteen thousand, one hundred fifty-five".