1115489423 has 2 divisors, whose sum is σ = 1115489424. Its totient is φ = 1115489422.

The previous prime is 1115489339. The next prime is 1115489429. The reversal of 1115489423 is 3249845111.

It is a strong prime.

It is an emirp because it is prime and its reverse (3249845111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1115489423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1115489429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557744711 + 557744712.

It is an arithmetic number, because the mean of its divisors is an integer number (557744712).

Almost surely, 2^1115489423 is an apocalyptic number.

1115489423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115489423 is an equidigital number, since it uses as much as digits as its factorization.

1115489423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 38.

The square root of 1115489423 is about 33398.9434413725. The cubic root of 1115489423 is about 1037.1028289216.

The spelling of 1115489423 in words is "one billion, one hundred fifteen million, four hundred eighty-nine thousand, four hundred twenty-three".