1115542241 has 8 divisors (see below), whose sum is σ = 1222318944. Its totient is φ = 1009659520.

The previous prime is 1115542237. The next prime is 1115542367. The reversal of 1115542241 is 1422455111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1115542241 - 2² = 1115542237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1115542241.

It is not an unprimeable number, because it can be changed into a prime (1115542201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220880 + ... + 225873.

It is an arithmetic number, because the mean of its divisors is an integer number (152789868).

Almost surely, 2^1115542241 is an apocalyptic number.

1115542241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1115542241 is a deficient number, since it is larger than the sum of its proper divisors (106776703).

1115542241 is a wasteful number, since it uses less digits than its factorization.

1115542241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446991.

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

The square root of 1115542241 is about 33399.7341456485. The cubic root of 1115542241 is about 1037.1191974715.

Adding to 1115542241 its reverse (1422455111), we get a palindrome (2537997352).

The spelling of 1115542241 in words is "one billion, one hundred fifteen million, five hundred forty-two thousand, two hundred forty-one".