1215017060 has 48 divisors (see below), whose sum is σ = 2654996400. Its totient is φ = 466497024.

The previous prime is 1215017051. The next prime is 1215017071. The reversal of 1215017060 is 607105121.

It can be written as a sum of positive squares in 8 ways, for example, as 328406884 + 886610176 = 18122^2 + 29776^2 .

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 15 ways as a sum of consecutive naturals, for example, 94286 + ... + 106394.

It is an arithmetic number, because the mean of its divisors is an integer number (55312425).

Almost surely, 2^1215017060 is an apocalyptic number.

1215017060 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 1215017060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1327498200).

1215017060 is an abundant number, since it is smaller than the sum of its proper divisors (1439979340).

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

1215017060 is a wasteful number, since it uses less digits than its factorization.

1215017060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12320 (or 12318 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 1215017060 is about 34857.0948301777. The cubic root of 1215017060 is about 1067.0729856117.

The spelling of 1215017060 in words is "one billion, two hundred fifteen million, seventeen thousand, sixty".