1156005007 has 2 divisors, whose sum is σ = 1156005008. Its totient is φ = 1156005006.

The previous prime is 1156004977. The next prime is 1156005073. The reversal of 1156005007 is 7005006511.

It is a weak prime.

It is an emirp because it is prime and its reverse (7005006511) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1156005007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1156005107) 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 as a sum of consecutive naturals, namely, 578002503 + 578002504.

It is an arithmetic number, because the mean of its divisors is an integer number (578002504).

Almost surely, 2^1156005007 is an apocalyptic number.

1156005007 is a deficient number, since it is larger than the sum of its proper divisors (1).

1156005007 is an equidigital number, since it uses as much as digits as its factorization.

1156005007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1050, while the sum is 25.

The square root of 1156005007 is about 34000.0736322732. The cubic root of 1156005007 is about 1049.5099775460.

The spelling of 1156005007 in words is "one billion, one hundred fifty-six million, five thousand, seven".