1215214115 has 8 divisors (see below), whose sum is σ = 1508541840. Its totient is φ = 938648032.

The previous prime is 1215214097. The next prime is 1215214171. The reversal of 1215214115 is 5114125121.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1215214115 - 2¹⁶ = 1215148579 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4190249 + ... + 4190538.

It is an arithmetic number, because the mean of its divisors is an integer number (188567730).

Almost surely, 2^1215214115 is an apocalyptic number.

1215214115 is a deficient number, since it is larger than the sum of its proper divisors (293327725).

1215214115 is an equidigital number, since it uses as much as digits as its factorization.

1215214115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8380821.

The product of its digits is 400, while the sum is 23.

The square root of 1215214115 is about 34859.9213280810. The cubic root of 1215214115 is about 1067.1306694933.

Adding to 1215214115 its reverse (5114125121), we get a palindrome (6329339236).

The spelling of 1215214115 in words is "one billion, two hundred fifteen million, two hundred fourteen thousand, one hundred fifteen".