2134400281 has 8 divisors (see below), whose sum is σ = 2299587584. Its totient is φ = 1969356240.

The previous prime is 2134400249. The next prime is 2134400287. The reversal of 2134400281 is 1820044312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2134400281 - 2⁵ = 2134400249 is a prime.

It is a super-2 number, since 2×2134400281² = 9111329119065757922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2134400287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3801 + ... + 65446.

It is an arithmetic number, because the mean of its divisors is an integer number (287448448).

Almost surely, 2^2134400281 is an apocalyptic number.

It is an amenable number.

2134400281 is a deficient number, since it is larger than the sum of its proper divisors (165187303).

2134400281 is a wasteful number, since it uses less digits than its factorization.

2134400281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71631.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 2134400281 is about 46199.5701386928. The cubic root of 2134400281 is about 1287.5337534243.

Adding to 2134400281 its reverse (1820044312), we get a palindrome (3954444593).

The spelling of 2134400281 in words is "two billion, one hundred thirty-four million, four hundred thousand, two hundred eighty-one".