1215479160 has 384 divisors, whose sum is σ = 4796513280. Its totient is φ = 260941824.

The previous prime is 1215479159. The next prime is 1215479171. The reversal of 1215479160 is 619745121.

1215479160 is a `hidden beast` number, since 1 + 21 + 5 + 479 + 160 = 666.

1215479160 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3883164 + ... + 3883476.

It is an arithmetic number, because the mean of its divisors is an integer number (12490920).

Almost surely, 2^1215479160 is an apocalyptic number.

1215479160 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 1215479160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2398256640).

1215479160 is an abundant number, since it is smaller than the sum of its proper divisors (3581034120).

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

1215479160 is a wasteful number, since it uses less digits than its factorization.

1215479160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427 (or 420 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 1215479160 is about 34863.7226927934. The cubic root of 1215479160 is about 1067.2082462442.

The spelling of 1215479160 in words is "one billion, two hundred fifteen million, four hundred seventy-nine thousand, one hundred sixty".