1215546130 has 8 divisors (see below), whose sum is σ = 2187983052. Its totient is φ = 486218448.

The previous prime is 1215546127. The next prime is 1215546131. The reversal of 1215546130 is 316455121.

It can be written as a sum of positive squares in 2 ways, for example, as 1199998881 + 15547249 = 34641^2 + 3943^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1215546131) 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 3 ways as a sum of consecutive naturals, for example, 60777297 + ... + 60777316.

Almost surely, 2^1215546130 is an apocalyptic number.

1215546130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1215546130 is a deficient number, since it is larger than the sum of its proper divisors (972436922).

1215546130 is a wasteful number, since it uses less digits than its factorization.

1215546130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121554620.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1215546130 is about 34864.6831335092. The cubic root of 1215546130 is about 1067.2278460931.

It can be divided in two parts, 12155 and 46130, that added together give a palindrome (58285).

The spelling of 1215546130 in words is "one billion, two hundred fifteen million, five hundred forty-six thousand, one hundred thirty".