1383690091 has 4 divisors (see below), whose sum is σ = 1581360112. Its totient is φ = 1186020072.

The previous prime is 1383690089. The next prime is 1383690109. The reversal of 1383690091 is 1900963831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1383690091 - 2¹ = 1383690089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1383690041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98835000 + ... + 98835013.

It is an arithmetic number, because the mean of its divisors is an integer number (395340028).

Almost surely, 2^1383690091 is an apocalyptic number.

1383690091 is a deficient number, since it is larger than the sum of its proper divisors (197670021).

1383690091 is an equidigital number, since it uses as much as digits as its factorization.

1383690091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197670020.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 1383690091 is about 37197.9850395152. The cubic root of 1383690091 is about 1114.3277442687.

The spelling of 1383690091 in words is "one billion, three hundred eighty-three million, six hundred ninety thousand, ninety-one".