1215550652 has 6 divisors (see below), whose sum is σ = 2127213648. Its totient is φ = 607775324.

The previous prime is 1215550639. The next prime is 1215550663. The reversal of 1215550652 is 2560555121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151943828 + ... + 151943835.

It is an arithmetic number, because the mean of its divisors is an integer number (354535608).

Almost surely, 2^1215550652 is an apocalyptic number.

It is an amenable number.

1215550652 is a deficient number, since it is larger than the sum of its proper divisors (911662996).

1215550652 is a wasteful number, since it uses less digits than its factorization.

1215550652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303887667 (or 303887665 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 32.

The square root of 1215550652 is about 34864.7479841745. The cubic root of 1215550652 is about 1067.2291695032.

The spelling of 1215550652 in words is "one billion, two hundred fifteen million, five hundred fifty thousand, six hundred fifty-two".