85152919 has 2 divisors, whose sum is σ = 85152920. Its totient is φ = 85152918.

The previous prime is 85152917. The next prime is 85152953. The reversal of 85152919 is 91925158.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85152919 - 2¹ = 85152917 is a prime.

It is a super-2 number, since 2×85152919² = 14502039228441122, which contains 22 as substring.

Together with 85152917, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85152911) 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 as a sum of consecutive naturals, namely, 42576459 + 42576460.

It is an arithmetic number, because the mean of its divisors is an integer number (42576460).

Almost surely, 2^85152919 is an apocalyptic number.

85152919 is a deficient number, since it is larger than the sum of its proper divisors (1).

85152919 is an equidigital number, since it uses as much as digits as its factorization.

85152919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32400, while the sum is 40.

The square root of 85152919 is about 9227.8339278511. The cubic root of 85152919 is about 439.9464793717.

The spelling of 85152919 in words is "eighty-five million, one hundred fifty-two thousand, nine hundred nineteen".