1155327297 has 16 divisors (see below), whose sum is σ = 1577801280. Its totient is φ = 751747392.

The previous prime is 1155327269. The next prime is 1155327301. The reversal of 1155327297 is 7927235511.

It is not a de Polignac number, because 1155327297 - 2¹⁴ = 1155310913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1155327227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4458 + ... + 48275.

It is an arithmetic number, because the mean of its divisors is an integer number (98612580).

Almost surely, 2^1155327297 is an apocalyptic number.

It is an amenable number.

1155327297 is a deficient number, since it is larger than the sum of its proper divisors (422473983).

1155327297 is a wasteful number, since it uses less digits than its factorization.

1155327297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52912.

The product of its digits is 132300, while the sum is 42.

The square root of 1155327297 is about 33990.1058692085. The cubic root of 1155327297 is about 1049.3048450881.

The spelling of 1155327297 in words is "one billion, one hundred fifty-five million, three hundred twenty-seven thousand, two hundred ninety-seven".