1157039 has 4 divisors (see below), whose sum is σ = 1246056. Its totient is φ = 1068024.

The previous prime is 1157033. The next prime is 1157053. The reversal of 1157039 is 9307511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9307511 = 19 ⋅489869.

It is a cyclic number.

It is not a de Polignac number, because 1157039 - 2⁸ = 1156783 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1156999 and 1157017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44489 + ... + 44514.

It is an arithmetic number, because the mean of its divisors is an integer number (311514).

2^1157039 is an apocalyptic number.

1157039 is a deficient number, since it is larger than the sum of its proper divisors (89017).

1157039 is an equidigital number, since it uses as much as digits as its factorization.

1157039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89016.

The product of its (nonzero) digits is 945, while the sum is 26.

The square root of 1157039 is about 1075.6574733622. The cubic root of 1157039 is about 104.9822797005.

The spelling of 1157039 in words is "one million, one hundred fifty-seven thousand, thirty-nine".