134442403 has 8 divisors (see below), whose sum is σ = 137951856. Its totient is φ = 130944000.

The previous prime is 134442389. The next prime is 134442431. The reversal of 134442403 is 304244431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134442403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134448403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25603 + ... + 30403.

It is an arithmetic number, because the mean of its divisors is an integer number (17243982).

Almost surely, 2^134442403 is an apocalyptic number.

134442403 is a deficient number, since it is larger than the sum of its proper divisors (3509453).

134442403 is an equidigital number, since it uses as much as digits as its factorization.

134442403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5525.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 134442403 is about 11594.9300558477. The cubic root of 134442403 is about 512.2855297735.

Adding to 134442403 its reverse (304244431), we get a palindrome (438686834).

The spelling of 134442403 in words is "one hundred thirty-four million, four hundred forty-two thousand, four hundred three".