85111930 has 8 divisors (see below), whose sum is σ = 153201492. Its totient is φ = 34044768.

The previous prime is 85111927. The next prime is 85111933. The reversal of 85111930 is 3911158.

It is an interprime number because it is at equal distance from previous prime (85111927) and next prime (85111933).

It can be written as a sum of positive squares in 2 ways, for example, as 77422401 + 7689529 = 8799^2 + 2773^2 .

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

It is not an unprimeable number, because it can be changed into a prime (85111933) 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 3 ways as a sum of consecutive naturals, for example, 4255587 + ... + 4255606.

Almost surely, 2^85111930 is an apocalyptic number.

85111930 is a deficient number, since it is larger than the sum of its proper divisors (68089562).

85111930 is a wasteful number, since it uses less digits than its factorization.

85111930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8511200.

The product of its (nonzero) digits is 1080, while the sum is 28.

The square root of 85111930 is about 9225.6127167793. The cubic root of 85111930 is about 439.8758775232.

The spelling of 85111930 in words is "eighty-five million, one hundred eleven thousand, nine hundred thirty".