1238005585 has 16 divisors (see below), whose sum is σ = 1500045120. Its totient is φ = 980815680.

The previous prime is 1238005547. The next prime is 1238005589. The reversal of 1238005585 is 5855008321.

It is not a de Polignac number, because 1238005585 - 2⁹ = 1238005073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1238005589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305875 + ... + 309895.

It is an arithmetic number, because the mean of its divisors is an integer number (93752820).

Almost surely, 2^1238005585 is an apocalyptic number.

It is an amenable number.

1238005585 is a deficient number, since it is larger than the sum of its proper divisors (262039535).

1238005585 is a wasteful number, since it uses less digits than its factorization.

1238005585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4608.

The product of its (nonzero) digits is 48000, while the sum is 37.

The square root of 1238005585 is about 35185.3035371304. The cubic root of 1238005585 is about 1073.7607742805.

The spelling of 1238005585 in words is "one billion, two hundred thirty-eight million, five thousand, five hundred eighty-five".