845373081 has 32 divisors (see below), whose sum is σ = 1304709120. Its totient is φ = 476908416.

The previous prime is 845373079. The next prime is 845373083. The reversal of 845373081 is 180373548.

It is an interprime number because it is at equal distance from previous prime (845373079) and next prime (845373083).

It is not a de Polignac number, because 845373081 - 2¹ = 845373079 is a prime.

It is a super-2 number, since 2×845373081² = 1429311292158865122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (845373083) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 986005 + ... + 986861.

It is an arithmetic number, because the mean of its divisors is an integer number (40772160).

Almost surely, 2^845373081 is an apocalyptic number.

It is an amenable number.

845373081 is a deficient number, since it is larger than the sum of its proper divisors (459336039).

845373081 is a wasteful number, since it uses less digits than its factorization.

845373081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1413.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 845373081 is about 29075.3001876163. The cubic root of 845373081 is about 945.5463115863.

The spelling of 845373081 in words is "eight hundred forty-five million, three hundred seventy-three thousand, eighty-one".