1140000001 has 4 divisors (see below), whose sum is σ = 1302857152. Its totient is φ = 977142852.

The previous prime is 1139999963. The next prime is 1140000011. The reversal of 1140000001 is 1000000411.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1140000001 - 2¹⁵ = 1139967233 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (7), and also a Moran number because the ratio is a prime number: 162857143 = 1140000001 / (1 + 1 + 4 + 0 + 0 + 0 + 0 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1140000011) 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, 81428565 + ... + 81428578.

It is an arithmetic number, because the mean of its divisors is an integer number (325714288).

Almost surely, 2^1140000001 is an apocalyptic number.

It is an amenable number.

1140000001 is a deficient number, since it is larger than the sum of its proper divisors (162857151).

1140000001 is an equidigital number, since it uses as much as digits as its factorization.

1140000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162857150.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 1140000001 is about 33763.8860470770. The cubic root of 1140000001 is about 1044.6439271278.

Adding to 1140000001 its reverse (1000000411), we get a palindrome (2140000412).

The spelling of 1140000001 in words is "one billion, one hundred forty million, one", and thus it is an aban number.