85124197 has 4 divisors (see below), whose sum is σ = 86567040. Its totient is φ = 83681356.

The previous prime is 85124189. The next prime is 85124209. The reversal of 85124197 is 79142158.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85124197 - 2³ = 85124189 is a prime.

It is a super-2 number, since 2×85124197² = 14492257829789618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85124167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 721333 + ... + 721450.

It is an arithmetic number, because the mean of its divisors is an integer number (21641760).

Almost surely, 2^85124197 is an apocalyptic number.

It is an amenable number.

85124197 is a deficient number, since it is larger than the sum of its proper divisors (1442843).

85124197 is a wasteful number, since it uses less digits than its factorization.

85124197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442842.

The product of its digits is 20160, while the sum is 37.

The square root of 85124197 is about 9226.2775267168. The cubic root of 85124197 is about 439.8970092971.

The spelling of 85124197 in words is "eighty-five million, one hundred twenty-four thousand, one hundred ninety-seven".