133444103 has 4 divisors (see below), whose sum is σ = 143709048. Its totient is φ = 123179160.

The previous prime is 133444099. The next prime is 133444111. The reversal of 133444103 is 301444331.

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

It is not a de Polignac number, because 133444103 - 2² = 133444099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133444133) 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, 5132453 + ... + 5132478.

It is an arithmetic number, because the mean of its divisors is an integer number (35927262).

Almost surely, 2^133444103 is an apocalyptic number.

133444103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

133444103 is a deficient number, since it is larger than the sum of its proper divisors (10264945).

133444103 is a wasteful number, since it uses less digits than its factorization.

133444103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10264944.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 133444103 is about 11551.8008552779. The cubic root of 133444103 is about 511.0143888371.

Adding to 133444103 its reverse (301444331), we get a palindrome (434888434).

The spelling of 133444103 in words is "one hundred thirty-three million, four hundred forty-four thousand, one hundred three".