1215054130 has 16 divisors (see below), whose sum is σ = 2187583704. Its totient is φ = 485913600.

The previous prime is 1215054119. The next prime is 1215054149. The reversal of 1215054130 is 314505121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1036002969 + 179051161 = 32187^2 + 13381^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46354 + ... + 67666.

Almost surely, 2^1215054130 is an apocalyptic number.

1215054130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1215054130 is a deficient number, since it is larger than the sum of its proper divisors (972529574).

1215054130 is a wasteful number, since it uses less digits than its factorization.

1215054130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27021.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1215054130 is about 34857.6265686578. The cubic root of 1215054130 is about 1067.0838375837.

Adding to 1215054130 its reverse (314505121), we get a palindrome (1529559251).

The spelling of 1215054130 in words is "one billion, two hundred fifteen million, fifty-four thousand, one hundred thirty".