2019140807 has 4 divisors (see below), whose sum is σ = 2020045656. Its totient is φ = 2018235960.

The previous prime is 2019140797. The next prime is 2019140819. The reversal of 2019140807 is 7080419102.

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 2019140807 - 2⁴ = 2019140791 is a prime.

It is a super-2 number, since 2×2019140807² = 8153859196985222498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2019140897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 449069 + ... + 453542.

It is an arithmetic number, because the mean of its divisors is an integer number (505011414).

Almost surely, 2^2019140807 is an apocalyptic number.

2019140807 is a deficient number, since it is larger than the sum of its proper divisors (904849).

2019140807 is an equidigital number, since it uses as much as digits as its factorization.

2019140807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904848.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 2019140807 is about 44934.8506952009. The cubic root of 2019140807 is about 1263.9276130818.

Adding to 2019140807 its reverse (7080419102), we get a palindrome (9099559909).

The spelling of 2019140807 in words is "two billion, nineteen million, one hundred forty thousand, eight hundred seven".