1215433486089 has 27 divisors (see below), whose sum is σ = 1865059381237. Its totient is φ = 762589653504.

The previous prime is 1215433486067. The next prime is 1215433486153. The reversal of 1215433486089 is 9806843345121.

It is a happy number.

The square root of 1215433486089 is 1102467.

It is a perfect power (a square), and thus also a powerful number.

1215433486089 is a `hidden beast` number, since 1 + 2 + 1 + 54 + 33 + 486 + 0 + 89 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3496711689 + 1211936774400 = 59133^2 + 1100880^2 .

It is not a de Polignac number, because 1215433486089 - 2¹³ = 1215433477897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1215433416089) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 56215009 + ... + 56236625.

Almost surely, 2^{1215433486089} is an apocalyptic number.

1215433486089 is the 1102467-th square number.

1215433486089 is the 551234-th centered octagonal number.

It is an amenable number.

1215433486089 is a deficient number, since it is larger than the sum of its proper divisors (649625895148).

1215433486089 is an frugal number, since it uses more digits than its factorization.

1215433486089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43274 (or 21637 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The spelling of 1215433486089 in words is "one trillion, two hundred fifteen billion, four hundred thirty-three million, four hundred eighty-six thousand, eighty-nine".