85515119 has 2 divisors, whose sum is σ = 85515120. Its totient is φ = 85515118.

The previous prime is 85515109. The next prime is 85515167. The reversal of 85515119 is 91151558.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85515119 is a prime.

It is a super-2 number, since 2×85515119² = 14625671155168322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85515109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42757559 + 42757560.

It is an arithmetic number, because the mean of its divisors is an integer number (42757560).

Almost surely, 2^85515119 is an apocalyptic number.

85515119 is a deficient number, since it is larger than the sum of its proper divisors (1).

85515119 is an equidigital number, since it uses as much as digits as its factorization.

85515119 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9000, while the sum is 35.

The square root of 85515119 is about 9247.4385102038. The cubic root of 85515119 is about 440.5693713720.

The spelling of 85515119 in words is "eighty-five million, five hundred fifteen thousand, one hundred nineteen".