85120943 has 2 divisors, whose sum is σ = 85120944. Its totient is φ = 85120942.

The previous prime is 85120939. The next prime is 85120949. The reversal of 85120943 is 34902158.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85120943 - 2² = 85120939 is a prime.

It is equal to p_4950275 and since 85120943 and 4950275 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85120949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42560471 + 42560472.

It is an arithmetic number, because the mean of its divisors is an integer number (42560472).

Almost surely, 2^85120943 is an apocalyptic number.

85120943 is a deficient number, since it is larger than the sum of its proper divisors (1).

85120943 is an equidigital number, since it uses as much as digits as its factorization.

85120943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 85120943 is about 9226.1011808889. The cubic root of 85120943 is about 439.8914039848.

The spelling of 85120943 in words is "eighty-five million, one hundred twenty thousand, nine hundred forty-three".