2134281 has 4 divisors (see below), whose sum is σ = 2845712. Its totient is φ = 1422852.

The previous prime is 2134273. The next prime is 2134283. The reversal of 2134281 is 1824312.

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.

It is not a de Polignac number, because 2134281 - 2³ = 2134273 is a prime.

It is a super-2 number, since 2×2134281² = 9110310773922, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2134283) 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, 355711 + ... + 355716.

It is an arithmetic number, because the mean of its divisors is an integer number (711428).

2^2134281 is an apocalyptic number.

It is an amenable number.

2134281 is a deficient number, since it is larger than the sum of its proper divisors (711431).

2134281 is an equidigital number, since it uses as much as digits as its factorization.

2134281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711430.

The product of its digits is 384, while the sum is 21.

The square root of 2134281 is about 1460.9178621675. The cubic root of 2134281 is about 128.7509768361.

Adding to 2134281 its reverse (1824312), we get a palindrome (3958593).

It can be divided in two parts, 2134 and 281, that added together give a triangular number (2415 = T₆₉).

The spelling of 2134281 in words is "two million, one hundred thirty-four thousand, two hundred eighty-one".