134213403 has 4 divisors (see below), whose sum is σ = 178951208. Its totient is φ = 89475600.

The previous prime is 134213399. The next prime is 134213411. The reversal of 134213403 is 304312431.

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

It is not a de Polignac number, because 134213403 - 2² = 134213399 is a prime.

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 134213403.

It is not an unprimeable number, because it can be changed into a prime (134213413) 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, 22368898 + ... + 22368903.

It is an arithmetic number, because the mean of its divisors is an integer number (44737802).

Almost surely, 2^134213403 is an apocalyptic number.

134213403 is a deficient number, since it is larger than the sum of its proper divisors (44737805).

134213403 is an equidigital number, since it uses as much as digits as its factorization.

134213403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44737804.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 134213403 is about 11585.0508414940. The cubic root of 134213403 is about 511.9945004190.

Adding to 134213403 its reverse (304312431), we get a palindrome (438525834).

The spelling of 134213403 in words is "one hundred thirty-four million, two hundred thirteen thousand, four hundred three".