1845388134 has 12 divisors (see below), whose sum is σ = 3998340996. Its totient is φ = 615129372.

The previous prime is 1845388099. The next prime is 1845388157. The reversal of 1845388134 is 4318835481.

1845388134 is a `hidden beast` number, since 1 + 8 + 4 + 538 + 81 + 34 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1845388134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51260764 + ... + 51260799.

It is an arithmetic number, because the mean of its divisors is an integer number (333195083).

Almost surely, 2^1845388134 is an apocalyptic number.

1845388134 is an abundant number, since it is smaller than the sum of its proper divisors (2152952862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1845388134 is a wasteful number, since it uses less digits than its factorization.

1845388134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102521571 (or 102521568 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The square root of 1845388134 is about 42957.9810279766. The cubic root of 1845388134 is about 1226.5800815966.

The spelling of 1845388134 in words is "one billion, eight hundred forty-five million, three hundred eighty-eight thousand, one hundred thirty-four".