1155904327 has 2 divisors, whose sum is σ = 1155904328. Its totient is φ = 1155904326.

The previous prime is 1155904319. The next prime is 1155904333. The reversal of 1155904327 is 7234095511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1155904327 - 2³ = 1155904319 is a prime.

It is a super-2 number, since 2×1155904327² = 2672229626354645858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1155904927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577952163 + 577952164.

It is an arithmetic number, because the mean of its divisors is an integer number (577952164).

Almost surely, 2^1155904327 is an apocalyptic number.

1155904327 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155904327 is an equidigital number, since it uses as much as digits as its factorization.

1155904327 is an evil number, because the sum of its binary digits is even.

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

The square root of 1155904327 is about 33998.5930150058. The cubic root of 1155904327 is about 1049.4795083203.

Adding to 1155904327 its reverse (7234095511), we get a palindrome (8389999838).

The spelling of 1155904327 in words is "one billion, one hundred fifty-five million, nine hundred four thousand, three hundred twenty-seven".