2134555321 has 4 divisors (see below), whose sum is σ = 2141289252. Its totient is φ = 2127821392.

The previous prime is 2134555301. The next prime is 2134555327. The reversal of 2134555321 is 1235554312.

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

It can be written as a sum of positive squares in 2 ways, for example, as 957036096 + 1177519225 = 30936^2 + 34315^2 .

It is a cyclic number.

It is not a de Polignac number, because 2134555321 - 2⁷ = 2134555193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2134555327) 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, 3366490 + ... + 3367123.

It is an arithmetic number, because the mean of its divisors is an integer number (535322313).

Almost surely, 2^2134555321 is an apocalyptic number.

It is an amenable number.

2134555321 is a deficient number, since it is larger than the sum of its proper divisors (6733931).

2134555321 is an equidigital number, since it uses as much as digits as its factorization.

2134555321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6733930.

The product of its digits is 18000, while the sum is 31.

The square root of 2134555321 is about 46201.2480459132. The cubic root of 2134555321 is about 1287.5649275831.

The spelling of 2134555321 in words is "two billion, one hundred thirty-four million, five hundred fifty-five thousand, three hundred twenty-one".