2215516141 has 4 divisors (see below), whose sum is σ = 2225276352. Its totient is φ = 2205755932.

The previous prime is 2215516129. The next prime is 2215516159. The reversal of 2215516141 is 1416155122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1416155122 = 2 ⋅708077561.

It is a cyclic number.

It is not a de Polignac number, because 2215516141 - 2¹⁹ = 2214991853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215516111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4879765 + ... + 4880218.

It is an arithmetic number, because the mean of its divisors is an integer number (556319088).

Almost surely, 2^2215516141 is an apocalyptic number.

It is an amenable number.

2215516141 is a deficient number, since it is larger than the sum of its proper divisors (9760211).

2215516141 is an equidigital number, since it uses as much as digits as its factorization.

2215516141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9760210.

The product of its digits is 2400, while the sum is 28.

The square root of 2215516141 is about 47069.2696034260. The cubic root of 2215516141 is about 1303.6418867209.

The spelling of 2215516141 in words is "two billion, two hundred fifteen million, five hundred sixteen thousand, one hundred forty-one".