1145521327 has 2 divisors, whose sum is σ = 1145521328. Its totient is φ = 1145521326.

The previous prime is 1145521309. The next prime is 1145521339. The reversal of 1145521327 is 7231255411.

It is a strong prime.

It is an emirp because it is prime and its reverse (7231255411) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1145521327 is a prime.

It is a super-2 number, since 2×1145521327² = 2624438221223681858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1145521367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572760663 + 572760664.

It is an arithmetic number, because the mean of its divisors is an integer number (572760664).

Almost surely, 2^1145521327 is an apocalyptic number.

1145521327 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145521327 is an equidigital number, since it uses as much as digits as its factorization.

1145521327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8400, while the sum is 31.

The square root of 1145521327 is about 33845.5510665730. The cubic root of 1145521327 is about 1046.3277086907.

Adding to 1145521327 its reverse (7231255411), we get a palindrome (8376776738).

The spelling of 1145521327 in words is "one billion, one hundred forty-five million, five hundred twenty-one thousand, three hundred twenty-seven".