134311421 has 4 divisors (see below), whose sum is σ = 140151072. Its totient is φ = 128471772.

The previous prime is 134311409. The next prime is 134311451. The reversal of 134311421 is 124113431.

134311421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 134311421 - 2²⁶ = 67202557 is a prime.

It is a super-2 number, since 2×134311421² = 36079115622078482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134311393 and 134311402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134311451) 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, 2919791 + ... + 2919836.

It is an arithmetic number, because the mean of its divisors is an integer number (35037768).

Almost surely, 2^134311421 is an apocalyptic number.

It is an amenable number.

134311421 is a deficient number, since it is larger than the sum of its proper divisors (5839651).

134311421 is an equidigital number, since it uses as much as digits as its factorization.

134311421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5839650.

The product of its digits is 288, while the sum is 20.

The square root of 134311421 is about 11589.2804349537. The cubic root of 134311421 is about 512.1191090992.

Adding to 134311421 its reverse (124113431), we get a palindrome (258424852).

The spelling of 134311421 in words is "one hundred thirty-four million, three hundred eleven thousand, four hundred twenty-one".