1155513607 has 2 divisors, whose sum is σ = 1155513608. Its totient is φ = 1155513606.

The previous prime is 1155513553. The next prime is 1155513617. The reversal of 1155513607 is 7063155511.

It is a strong prime.

It is an emirp because it is prime and its reverse (7063155511) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1155513607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1155513617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577756803 + 577756804.

It is an arithmetic number, because the mean of its divisors is an integer number (577756804).

Almost surely, 2^1155513607 is an apocalyptic number.

1155513607 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155513607 is an equidigital number, since it uses as much as digits as its factorization.

1155513607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15750, while the sum is 34.

The square root of 1155513607 is about 33992.8464092079. The cubic root of 1155513607 is about 1049.3612462708.

The spelling of 1155513607 in words is "one billion, one hundred fifty-five million, five hundred thirteen thousand, six hundred seven".