1155167623 has 2 divisors, whose sum is σ = 1155167624. Its totient is φ = 1155167622.

The previous prime is 1155167621. The next prime is 1155167641. The reversal of 1155167623 is 3267615511.

It is a weak prime.

It is an emirp because it is prime and its reverse (3267615511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1155167623 - 2¹ = 1155167621 is a prime.

Together with 1155167621, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1155167621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577583811 + 577583812.

It is an arithmetic number, because the mean of its divisors is an integer number (577583812).

Almost surely, 2^1155167623 is an apocalyptic number.

1155167623 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155167623 is an equidigital number, since it uses as much as digits as its factorization.

1155167623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37800, while the sum is 37.

The square root of 1155167623 is about 33987.7569574693. The cubic root of 1155167623 is about 1049.2565025328.

The spelling of 1155167623 in words is "one billion, one hundred fifty-five million, one hundred sixty-seven thousand, six hundred twenty-three".