85120151 has 2 divisors, whose sum is σ = 85120152. Its totient is φ = 85120150.

The previous prime is 85120129. The next prime is 85120153. The reversal of 85120151 is 15102158.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85120151 is a prime.

Together with 85120153, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85120153) 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, 42560075 + 42560076.

It is an arithmetic number, because the mean of its divisors is an integer number (42560076).

Almost surely, 2^85120151 is an apocalyptic number.

85120151 is a deficient number, since it is larger than the sum of its proper divisors (1).

85120151 is an equidigital number, since it uses as much as digits as its factorization.

85120151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 400, while the sum is 23.

The square root of 85120151 is about 9226.0582590833. The cubic root of 85120151 is about 439.8900396709.

The spelling of 85120151 in words is "eighty-five million, one hundred twenty thousand, one hundred fifty-one".