1381683205 has 32 divisors (see below), whose sum is σ = 1952584704. Its totient is φ = 918951936.

The previous prime is 1381683169. The next prime is 1381683239. The reversal of 1381683205 is 5023861831.

It is not a de Polignac number, because 1381683205 - 2⁷ = 1381683077 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 182169 + ... + 189601.

It is an arithmetic number, because the mean of its divisors is an integer number (61018272).

Almost surely, 2^1381683205 is an apocalyptic number.

It is an amenable number.

1381683205 is a deficient number, since it is larger than the sum of its proper divisors (570901499).

1381683205 is a wasteful number, since it uses less digits than its factorization.

1381683205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7605.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 1381683205 is about 37170.9995157515. Note that the first 3 decimals coincide. The cubic root of 1381683205 is about 1113.7887481412.

The spelling of 1381683205 in words is "one billion, three hundred eighty-one million, six hundred eighty-three thousand, two hundred five".