2143220415 has 16 divisors (see below), whose sum is σ = 3919031808. Its totient is φ = 979757856.

The previous prime is 2143220407. The next prime is 2143220423. The reversal of 2143220415 is 5140223412.

It is an interprime number because it is at equal distance from previous prime (2143220407) and next prime (2143220423).

It is not a de Polignac number, because 2143220415 - 2³ = 2143220407 is a prime.

It is a congruent 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, 10205707 + ... + 10205916.

It is an arithmetic number, because the mean of its divisors is an integer number (244939488).

Almost surely, 2^2143220415 is an apocalyptic number.

2143220415 is a deficient number, since it is larger than the sum of its proper divisors (1775811393).

2143220415 is a wasteful number, since it uses less digits than its factorization.

2143220415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20411638.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 2143220415 is about 46294.9286099460. The cubic root of 2143220415 is about 1289.3048384833.

Adding to 2143220415 its reverse (5140223412), we get a palindrome (7283443827).

The spelling of 2143220415 in words is "two billion, one hundred forty-three million, two hundred twenty thousand, four hundred fifteen".