1215433053 has 24 divisors (see below), whose sum is σ = 1815581760. Its totient is φ = 803620440.

The previous prime is 1215433049. The next prime is 1215433057. The reversal of 1215433053 is 3503345121.

It is an interprime number because it is at equal distance from previous prime (1215433049) and next prime (1215433057).

It is not a de Polignac number, because 1215433053 - 2² = 1215433049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 434088 + ... + 436878.

It is an arithmetic number, because the mean of its divisors is an integer number (75649240).

Almost surely, 2^1215433053 is an apocalyptic number.

It is an amenable number.

1215433053 is a deficient number, since it is larger than the sum of its proper divisors (600148707).

1215433053 is an equidigital number, since it uses as much as digits as its factorization.

1215433053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3054 (or 2921 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 1215433053 is about 34863.0614404415. The cubic root of 1215433053 is about 1067.1947518697.

Adding to 1215433053 its reverse (3503345121), we get a palindrome (4718778174).

The spelling of 1215433053 in words is "one billion, two hundred fifteen million, four hundred thirty-three thousand, fifty-three".