1115721463 has 2 divisors, whose sum is σ = 1115721464. Its totient is φ = 1115721462.

The previous prime is 1115721457. The next prime is 1115721469. The reversal of 1115721463 is 3641275111.

It is a balanced prime because it is at equal distance from previous prime (1115721457) and next prime (1115721469).

It is an emirp because it is prime and its reverse (3641275111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1115721463 - 2⁹ = 1115720951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1115721469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557860731 + 557860732.

It is an arithmetic number, because the mean of its divisors is an integer number (557860732).

Almost surely, 2^1115721463 is an apocalyptic number.

1115721463 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115721463 is an equidigital number, since it uses as much as digits as its factorization.

1115721463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 31.

The square root of 1115721463 is about 33402.4170233233. The cubic root of 1115721463 is about 1037.1747353725.

Adding to 1115721463 its reverse (3641275111), we get a palindrome (4756996574).

The spelling of 1115721463 in words is "one billion, one hundred fifteen million, seven hundred twenty-one thousand, four hundred sixty-three".