1152739 has 4 divisors (see below), whose sum is σ = 1317424. Its totient is φ = 988056.

The previous prime is 1152733. The next prime is 1152751. The reversal of 1152739 is 9372511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9372511 = 2377 ⋅3943.

It is a cyclic number.

It is not a de Polignac number, because 1152739 - 2⁵ = 1152707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1152733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82332 + ... + 82345.

It is an arithmetic number, because the mean of its divisors is an integer number (329356).

2^1152739 is an apocalyptic number.

1152739 is a deficient number, since it is larger than the sum of its proper divisors (164685).

1152739 is an equidigital number, since it uses as much as digits as its factorization.

1152739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164684.

The product of its digits is 1890, while the sum is 28.

The square root of 1152739 is about 1073.6568353063. The cubic root of 1152739 is about 104.8520668089.

It can be divided in two parts, 1152 and 739, that added together give a triangular number (1891 = T₆₁).

The spelling of 1152739 in words is "one million, one hundred fifty-two thousand, seven hundred thirty-nine".