2132412181 has 2 divisors, whose sum is σ = 2132412182. Its totient is φ = 2132412180.

The previous prime is 2132412167. The next prime is 2132412211. The reversal of 2132412181 is 1812142312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1875323025 + 257089156 = 43305^2 + 16034^2 .

It is a cyclic number.

It is not a de Polignac number, because 2132412181 - 2⁷ = 2132412053 is a prime.

It is a super-2 number, since 2×2132412181² = 9094363419354353522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2132412881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1066206090 + 1066206091.

It is an arithmetic number, because the mean of its divisors is an integer number (1066206091).

Almost surely, 2^2132412181 is an apocalyptic number.

It is an amenable number.

2132412181 is a deficient number, since it is larger than the sum of its proper divisors (1).

2132412181 is an equidigital number, since it uses as much as digits as its factorization.

2132412181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 768, while the sum is 25.

The square root of 2132412181 is about 46178.0486919922. The cubic root of 2132412181 is about 1287.1338688833.

Adding to 2132412181 its reverse (1812142312), we get a palindrome (3944554493).

The spelling of 2132412181 in words is "two billion, one hundred thirty-two million, four hundred twelve thousand, one hundred eighty-one".