134421403 has 4 divisors (see below), whose sum is σ = 134455680. Its totient is φ = 134387128.

The previous prime is 134421383. The next prime is 134421439. The reversal of 134421403 is 304124431.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134421403 is a prime.

It is a super-2 number, since 2×134421403² = 36138227168976818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134421103) 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, 10363 + ... + 19396.

It is an arithmetic number, because the mean of its divisors is an integer number (33613920).

Almost surely, 2^134421403 is an apocalyptic number.

134421403 is a deficient number, since it is larger than the sum of its proper divisors (34277).

134421403 is an equidigital number, since it uses as much as digits as its factorization.

134421403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34276.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 134421403 is about 11594.0244522771. The cubic root of 134421403 is about 512.2588552620.

Adding to 134421403 its reverse (304124431), we get a palindrome (438545834).

The spelling of 134421403 in words is "one hundred thirty-four million, four hundred twenty-one thousand, four hundred three".