2215434131 has 4 divisors (see below), whose sum is σ = 2216104152. Its totient is φ = 2214764112.

The previous prime is 2215434113. The next prime is 2215434217. The reversal of 2215434131 is 1314345122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2215434131 - 2¹⁰ = 2215433107 is a prime.

It is a super-2 number, since 2×2215434131² = 9816296777599450322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2215434131.

It is not an unprimeable number, because it can be changed into a prime (2215434731) 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, 330026 + ... + 336671.

It is an arithmetic number, because the mean of its divisors is an integer number (554026038).

Almost surely, 2^2215434131 is an apocalyptic number.

2215434131 is a deficient number, since it is larger than the sum of its proper divisors (670021).

2215434131 is an equidigital number, since it uses as much as digits as its factorization.

2215434131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670020.

The product of its digits is 2880, while the sum is 26.

The square root of 2215434131 is about 47068.3984324940. The cubic root of 2215434131 is about 1303.6258012305.

Adding to 2215434131 its reverse (1314345122), we get a palindrome (3529779253).

The spelling of 2215434131 in words is "two billion, two hundred fifteen million, four hundred thirty-four thousand, one hundred thirty-one".