1140739 has 4 divisors (see below), whose sum is σ = 1143000. Its totient is φ = 1138480.

The previous prime is 1140721. The next prime is 1140749. The reversal of 1140739 is 9370411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9370411 = 557 ⋅16823.

It is a cyclic number.

It is not a de Polignac number, because 1140739 - 2⁷ = 1140611 is a prime.

It is a super-2 number, since 2×1140739² = 2602570932242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1140709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12 + ... + 1510.

It is an arithmetic number, because the mean of its divisors is an integer number (285750).

2^1140739 is an apocalyptic number.

1140739 is a deficient number, since it is larger than the sum of its proper divisors (2261).

1140739 is an equidigital number, since it uses as much as digits as its factorization.

1140739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2260.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 1140739 is about 1068.0538375943. The cubic root of 1140739 is about 104.4869606679.

The spelling of 1140739 in words is "one million, one hundred forty thousand, seven hundred thirty-nine".