1215403130 has 8 divisors (see below), whose sum is σ = 2187725652. Its totient is φ = 486161248.

The previous prime is 1215403129. The next prime is 1215403159. The reversal of 1215403130 is 313045121.

It can be written as a sum of positive squares in 2 ways, for example, as 1088142169 + 127260961 = 32987^2 + 11281^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60770147 + ... + 60770166.

Almost surely, 2^1215403130 is an apocalyptic number.

1215403130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1215403130 is a deficient number, since it is larger than the sum of its proper divisors (972322522).

1215403130 is a wasteful number, since it uses less digits than its factorization.

1215403130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121540320.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1215403130 is about 34862.6322873073. The cubic root of 1215403130 is about 1067.1859939677.

Adding to 1215403130 its reverse (313045121), we get a palindrome (1528448251).

The spelling of 1215403130 in words is "one billion, two hundred fifteen million, four hundred three thousand, one hundred thirty".