1155312007 has 2 divisors, whose sum is σ = 1155312008. Its totient is φ = 1155312006.

The previous prime is 1155311977. The next prime is 1155312017. The reversal of 1155312007 is 7002135511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1155312007 - 2¹¹ = 1155309959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1155312017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577656003 + 577656004.

It is an arithmetic number, because the mean of its divisors is an integer number (577656004).

Almost surely, 2^1155312007 is an apocalyptic number.

1155312007 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155312007 is an equidigital number, since it uses as much as digits as its factorization.

1155312007 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 1155312007 is about 33989.8809500710. The cubic root of 1155312007 is about 1049.3002161136.

Adding to 1155312007 its reverse (7002135511), we get a palindrome (8157447518).

The spelling of 1155312007 in words is "one billion, one hundred fifty-five million, three hundred twelve thousand, seven".