1215433054 has 32 divisors (see below), whose sum is σ = 2162824416. Its totient is φ = 505912320.

The previous prime is 1215433049. The next prime is 1215433057. The reversal of 1215433054 is 4503345121.

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 15 ways as a sum of consecutive naturals, for example, 30079 + ... + 57754.

It is an arithmetic number, because the mean of its divisors is an integer number (67588263).

Almost surely, 2^1215433054 is an apocalyptic number.

1215433054 is a deficient number, since it is larger than the sum of its proper divisors (947391362).

1215433054 is a wasteful number, since it uses less digits than its factorization.

1215433054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87900.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 1215433054 is about 34863.0614547833. The cubic root of 1215433054 is about 1067.1947521624.

Adding to 1215433054 its reverse (4503345121), we get a palindrome (5718778175).

The spelling of 1215433054 in words is "one billion, two hundred fifteen million, four hundred thirty-three thousand, fifty-four".