1215141300 has 216 divisors, whose sum is σ = 4128860736. Its totient is φ = 297722880.

The previous prime is 1215141293. The next prime is 1215141311. The reversal of 1215141300 is 31415121.

1215141300 is a `hidden beast` number, since 1 + 21 + 514 + 130 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 656977 + ... + 658823.

It is an arithmetic number, because the mean of its divisors is an integer number (19115096).

Almost surely, 2^1215141300 is an apocalyptic number.

1215141300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1215141300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2064430368).

1215141300 is an abundant number, since it is smaller than the sum of its proper divisors (2913719436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1215141300 is a wasteful number, since it uses less digits than its factorization.

1215141300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1927 (or 1917 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1215141300 is about 34858.8769182256. The cubic root of 1215141300 is about 1067.1093550953.

Adding to 1215141300 its reverse (31415121), we get a palindrome (1246556421).

The spelling of 1215141300 in words is "one billion, two hundred fifteen million, one hundred forty-one thousand, three hundred".