134353421 has 4 divisors (see below), whose sum is σ = 135863100. Its totient is φ = 132843744.

The previous prime is 134353391. The next prime is 134353441. The reversal of 134353421 is 124353431.

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 34633225 + 99720196 = 5885^2 + 9986^2 .

It is a cyclic number.

It is not a de Polignac number, because 134353421 - 2¹⁰ = 134352397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134353441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 754706 + ... + 754883.

It is an arithmetic number, because the mean of its divisors is an integer number (33965775).

Almost surely, 2^134353421 is an apocalyptic number.

It is an amenable number.

134353421 is a deficient number, since it is larger than the sum of its proper divisors (1509679).

134353421 is an equidigital number, since it uses as much as digits as its factorization.

134353421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509678.

The product of its digits is 4320, while the sum is 26.

The square root of 134353421 is about 11591.0923126339. The cubic root of 134353421 is about 512.1724844583.

The spelling of 134353421 in words is "one hundred thirty-four million, three hundred fifty-three thousand, four hundred twenty-one".