1381320170 has 32 divisors (see below), whose sum is σ = 2581355520. Its totient is φ = 531558720.

The previous prime is 1381320169. The next prime is 1381320181. The reversal of 1381320170 is 710231831.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73655 + ... + 90485.

It is an arithmetic number, because the mean of its divisors is an integer number (80667360).

Almost surely, 2^1381320170 is an apocalyptic number.

1381320170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1381320170 is a deficient number, since it is larger than the sum of its proper divisors (1200035350).

1381320170 is a wasteful number, since it uses less digits than its factorization.

1381320170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17150.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 1381320170 is about 37166.1158853061. The cubic root of 1381320170 is about 1113.6911908730.

The spelling of 1381320170 in words is "one billion, three hundred eighty-one million, three hundred twenty thousand, one hundred seventy".