2146121315 has 16 divisors (see below), whose sum is σ = 2825782848. Its totient is φ = 1554923136.

The previous prime is 2146121297. The next prime is 2146121339. The reversal of 2146121315 is 5131216412.

It is not a de Polignac number, because 2146121315 - 2⁶ = 2146121251 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 308039 + ... + 314928.

It is an arithmetic number, because the mean of its divisors is an integer number (176611428).

Almost surely, 2^2146121315 is an apocalyptic number.

2146121315 is a deficient number, since it is larger than the sum of its proper divisors (679661533).

2146121315 is a wasteful number, since it uses less digits than its factorization.

2146121315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623038.

The product of its digits is 1440, while the sum is 26.

The square root of 2146121315 is about 46326.2486609913. The cubic root of 2146121315 is about 1289.8862778583.

Adding to 2146121315 its reverse (5131216412), we get a palindrome (7277337727).

The spelling of 2146121315 in words is "two billion, one hundred forty-six million, one hundred twenty-one thousand, three hundred fifteen".