1140401039 has 4 divisors (see below), whose sum is σ = 1159096200. Its totient is φ = 1121705880.

The previous prime is 1140401027. The next prime is 1140401047. The reversal of 1140401039 is 9301040411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9301040411 = 13 ⋅715464647.

It is a cyclic number.

It is not a de Polignac number, because 1140401039 - 2²⁰ = 1139352463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140401069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9347489 + ... + 9347610.

It is an arithmetic number, because the mean of its divisors is an integer number (289774050).

Almost surely, 2^1140401039 is an apocalyptic number.

1140401039 is a deficient number, since it is larger than the sum of its proper divisors (18695161).

1140401039 is an equidigital number, since it uses as much as digits as its factorization.

1140401039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18695160.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 1140401039 is about 33769.8243850927. The cubic root of 1140401039 is about 1044.7664104009.

The spelling of 1140401039 in words is "one billion, one hundred forty million, four hundred one thousand, thirty-nine".