1215005452 has 12 divisors (see below), whose sum is σ = 2218705776. Its totient is φ = 581089520.

The previous prime is 1215005417. The next prime is 1215005471. The reversal of 1215005452 is 2545005121.

It is a super-3 number, since 3×1215005452³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6603199 + ... + 6603382.

It is an arithmetic number, because the mean of its divisors is an integer number (184892148).

Almost surely, 2^1215005452 is an apocalyptic number.

It is an amenable number.

1215005452 is a deficient number, since it is larger than the sum of its proper divisors (1003700324).

1215005452 is a wasteful number, since it uses less digits than its factorization.

1215005452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13206608 (or 13206606 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 1215005452 is about 34856.9283213538. The cubic root of 1215005452 is about 1067.0695874090.

The spelling of 1215005452 in words is "one billion, two hundred fifteen million, five thousand, four hundred fifty-two".