1115421452 has 6 divisors (see below), whose sum is σ = 1951987548. Its totient is φ = 557710724.

The previous prime is 1115421449. The next prime is 1115421497. The reversal of 1115421452 is 2541245111.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139427678 + ... + 139427685.

It is an arithmetic number, because the mean of its divisors is an integer number (325331258).

Almost surely, 2^1115421452 is an apocalyptic number.

It is an amenable number.

1115421452 is a deficient number, since it is larger than the sum of its proper divisors (836566096).

1115421452 is a wasteful number, since it uses less digits than its factorization.

1115421452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278855367 (or 278855365 counting only the distinct ones).

The product of its digits is 1600, while the sum is 26.

The square root of 1115421452 is about 33397.9258637419. The cubic root of 1115421452 is about 1037.0817636246.

Adding to 1115421452 its reverse (2541245111), we get a palindrome (3656666563).

The spelling of 1115421452 in words is "one billion, one hundred fifteen million, four hundred twenty-one thousand, four hundred fifty-two".