1216152313 has 8 divisors (see below), whose sum is σ = 1224953280. Its totient is φ = 1207374000.

The previous prime is 1216152281. The next prime is 1216152331. The reversal of 1216152313 is 3132516121.

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 1216152313 - 2⁵ = 1216152281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1216102313) 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, 110563 + ... + 121063.

It is an arithmetic number, because the mean of its divisors is an integer number (153119160).

Almost surely, 2^1216152313 is an apocalyptic number.

It is an amenable number.

1216152313 is a deficient number, since it is larger than the sum of its proper divisors (8800967).

1216152313 is a wasteful number, since it uses less digits than its factorization.

1216152313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11327.

The product of its digits is 1080, while the sum is 25.

The square root of 1216152313 is about 34873.3754173582. The cubic root of 1216152313 is about 1067.4052225690.

Adding to 1216152313 its reverse (3132516121), we get a palindrome (4348668434).

The spelling of 1216152313 in words is "one billion, two hundred sixteen million, one hundred fifty-two thousand, three hundred thirteen".