1381999675 has 36 divisors (see below), whose sum is σ = 2098418520. Its totient is φ = 897765120.

The previous prime is 1381999673. The next prime is 1381999679. The reversal of 1381999675 is 5769991831.

It is not a de Polignac number, because 1381999675 - 2¹ = 1381999673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1381999673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6414 + ... + 52963.

Almost surely, 2^1381999675 is an apocalyptic number.

1381999675 is a deficient number, since it is larger than the sum of its proper divisors (716418845).

1381999675 is a wasteful number, since it uses less digits than its factorization.

1381999675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59420 (or 59408 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 58.

The square root of 1381999675 is about 37175.2562196954. The cubic root of 1381999675 is about 1113.8737782011.

The spelling of 1381999675 in words is "one billion, three hundred eighty-one million, nine hundred ninety-nine thousand, six hundred seventy-five".