1215003201 has 8 divisors (see below), whose sum is σ = 1621552800. Its totient is φ = 809227872.

The previous prime is 1215003197. The next prime is 1215003247. The reversal of 1215003201 is 1023005121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1215003201 - 2² = 1215003197 is a prime.

It is a super-3 number, since 3×1215003201³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1215003281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189895 + ... + 196188.

It is an arithmetic number, because the mean of its divisors is an integer number (202694100).

Almost surely, 2^1215003201 is an apocalyptic number.

It is an amenable number.

1215003201 is a deficient number, since it is larger than the sum of its proper divisors (406549599).

1215003201 is a wasteful number, since it uses less digits than its factorization.

1215003201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387135.

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

The square root of 1215003201 is about 34856.8960322057. The cubic root of 1215003201 is about 1067.0689284339.

Adding to 1215003201 its reverse (1023005121), we get a palindrome (2238008322).

The spelling of 1215003201 in words is "one billion, two hundred fifteen million, three thousand, two hundred one".