1215232441 has 2 divisors, whose sum is σ = 1215232442. Its totient is φ = 1215232440.

The previous prime is 1215232429. The next prime is 1215232451. The reversal of 1215232441 is 1442325121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 721459600 + 493772841 = 26860^2 + 22221^2 .

It is a cyclic number.

It is not a de Polignac number, because 1215232441 - 2⁵ = 1215232409 is a prime.

It is not a weakly prime, because it can be changed into another prime (1215232411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607616220 + 607616221.

It is an arithmetic number, because the mean of its divisors is an integer number (607616221).

Almost surely, 2^1215232441 is an apocalyptic number.

It is an amenable number.

1215232441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1215232441 is an equidigital number, since it uses as much as digits as its factorization.

1215232441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 25.

The square root of 1215232441 is about 34860.1841790889. The cubic root of 1215232441 is about 1067.1360337437.

Adding to 1215232441 its reverse (1442325121), we get a palindrome (2657557562).

The spelling of 1215232441 in words is "one billion, two hundred fifteen million, two hundred thirty-two thousand, four hundred forty-one".