1140040727 has 4 divisors (see below), whose sum is σ = 1302903696. Its totient is φ = 977177760.

The previous prime is 1140040691. The next prime is 1140040729. The reversal of 1140040727 is 7270400411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7270400411 = 2591 ⋅2806021.

It is a cyclic number.

It is not a de Polignac number, because 1140040727 - 2¹⁶ = 1139975191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1140040696 and 1140040705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140040729) 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, 81431474 + ... + 81431487.

It is an arithmetic number, because the mean of its divisors is an integer number (325725924).

Almost surely, 2^1140040727 is an apocalyptic number.

1140040727 is a deficient number, since it is larger than the sum of its proper divisors (162862969).

1140040727 is an equidigital number, since it uses as much as digits as its factorization.

1140040727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162862968.

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 1140040727 is about 33764.4891417003. The cubic root of 1140040727 is about 1044.6563667950.

The spelling of 1140040727 in words is "one billion, one hundred forty million, forty thousand, seven hundred twenty-seven".