134468281 has 4 divisors (see below), whose sum is σ = 140314752. Its totient is φ = 128621812.

The previous prime is 134468239. The next prime is 134468309. The reversal of 134468281 is 182864431.

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 a cyclic number.

It is not a de Polignac number, because 134468281 - 2⁷ = 134468153 is a prime.

It is a super-2 number, since 2×134468281² = 36163437190189922, 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 134468281.

It is not an unprimeable number, because it can be changed into a prime (134468221) 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, 2923201 + ... + 2923246.

It is an arithmetic number, because the mean of its divisors is an integer number (35078688).

Almost surely, 2^134468281 is an apocalyptic number.

It is an amenable number.

134468281 is a deficient number, since it is larger than the sum of its proper divisors (5846471).

134468281 is an equidigital number, since it uses as much as digits as its factorization.

134468281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5846470.

The product of its digits is 36864, while the sum is 37.

The square root of 134468281 is about 11596.0459209163. The cubic root of 134468281 is about 512.3183965729.

The spelling of 134468281 in words is "one hundred thirty-four million, four hundred sixty-eight thousand, two hundred eighty-one".