2140300091 has 4 divisors (see below), whose sum is σ = 2141531184. Its totient is φ = 2139069000.

The previous prime is 2140300073. The next prime is 2140300093. The reversal of 2140300091 is 1900030412.

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 2140300091 - 2⁶ = 2140300027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2140300093) 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, 612935 + ... + 616416.

It is an arithmetic number, because the mean of its divisors is an integer number (535382796).

Almost surely, 2^2140300091 is an apocalyptic number.

2140300091 is a deficient number, since it is larger than the sum of its proper divisors (1231093).

2140300091 is a wasteful number, since it uses less digits than its factorization.

2140300091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231092.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 2140300091 is about 46263.3774275074. The cubic root of 2140300091 is about 1288.7189756910.

The spelling of 2140300091 in words is "two billion, one hundred forty million, three hundred thousand, ninety-one".