1215132000 has 192 divisors, whose sum is σ = 4021617600. Its totient is φ = 320716800.

The previous prime is 1215131993. The next prime is 1215132011. The reversal of 1215132000 is 2315121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1307536 + ... + 1308464.

It is an arithmetic number, because the mean of its divisors is an integer number (20945925).

Almost surely, 2^1215132000 is an apocalyptic number.

1215132000 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 1215132000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2010808800).

1215132000 is an abundant number, since it is smaller than the sum of its proper divisors (2806485600).

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

1215132000 is a wasteful number, since it uses less digits than its factorization.

1215132000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066 (or 1048 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 1215132000 is about 34858.7435229671. The cubic root of 1215132000 is about 1067.1066327391.

Adding to 1215132000 its reverse (2315121), we get a palindrome (1217447121).

The spelling of 1215132000 in words is "one billion, two hundred fifteen million, one hundred thirty-two thousand".