1215332241 has 16 divisors (see below), whose sum is σ = 1652213376. Its totient is φ = 794358656.

The previous prime is 1215332201. The next prime is 1215332243. The reversal of 1215332241 is 1422335121.

It is a cyclic number.

It is not a de Polignac number, because 1215332241 - 2¹⁹ = 1214807953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1215332243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 417196 + ... + 420098.

It is an arithmetic number, because the mean of its divisors is an integer number (103263336).

Almost surely, 2^1215332241 is an apocalyptic number.

It is an amenable number.

1215332241 is a deficient number, since it is larger than the sum of its proper divisors (436881135).

1215332241 is a wasteful number, since it uses less digits than its factorization.

1215332241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5592.

The product of its digits is 1440, while the sum is 24.

The square root of 1215332241 is about 34861.6155821844. The cubic root of 1215332241 is about 1067.1652455107.

Adding to 1215332241 its reverse (1422335121), we get a palindrome (2637667362).

The spelling of 1215332241 in words is "one billion, two hundred fifteen million, three hundred thirty-two thousand, two hundred forty-one".