1385137586 has 32 divisors (see below), whose sum is σ = 2479382400. Its totient is φ = 579812688.

The previous prime is 1385137583. The next prime is 1385137591. The reversal of 1385137586 is 6857315831.

It is a super-2 number, since 2×1385137586² = 3837212264299814792, which contains 22 as substring.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1385137586.

It is not an unprimeable number, because it can be changed into a prime (1385137583) 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, 6020 + ... + 52976.

It is an arithmetic number, because the mean of its divisors is an integer number (77480700).

Almost surely, 2^1385137586 is an apocalyptic number.

1385137586 is a deficient number, since it is larger than the sum of its proper divisors (1094244814).

1385137586 is an equidigital number, since it uses as much as digits as its factorization.

1385137586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47023 (or 47009 counting only the distinct ones).

The product of its digits is 604800, while the sum is 47.

The square root of 1385137586 is about 37217.4365855576. The cubic root of 1385137586 is about 1114.7161794444.

The spelling of 1385137586 in words is "one billion, three hundred eighty-five million, one hundred thirty-seven thousand, five hundred eighty-six".