1215433055 has 8 divisors (see below), whose sum is σ = 1492438992. Its totient is φ = 949733568.

The previous prime is 1215433049. The next prime is 1215433057. The reversal of 1215433055 is 5503345121.

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 1215433055 - 2¹² = 1215428959 is a prime.

It is a super-2 number, since 2×1215433055² = 2954555022373266050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215433057) 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, 2826374 + ... + 2826803.

It is an arithmetic number, because the mean of its divisors is an integer number (186554874).

Almost surely, 2^1215433055 is an apocalyptic number.

1215433055 is a deficient number, since it is larger than the sum of its proper divisors (277005937).

1215433055 is an equidigital number, since it uses as much as digits as its factorization.

1215433055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5653225.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 1215433055 is about 34863.0614691252. The cubic root of 1215433055 is about 1067.1947524551.

Adding to 1215433055 its reverse (5503345121), we get a palindrome (6718778176).

The spelling of 1215433055 in words is "one billion, two hundred fifteen million, four hundred thirty-three thousand, fifty-five".