134720403 has 16 divisors (see below), whose sum is σ = 182434560. Its totient is φ = 88420896.

The previous prime is 134720387. The next prime is 134720429. The reversal of 134720403 is 304027431.

It is not a de Polignac number, because 134720403 - 2⁴ = 134720387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134720473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53376 + ... + 55842.

It is an arithmetic number, because the mean of its divisors is an integer number (11402160).

Almost surely, 2^134720403 is an apocalyptic number.

134720403 is a deficient number, since it is larger than the sum of its proper divisors (47714157).

134720403 is a wasteful number, since it uses less digits than its factorization.

134720403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2746.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 134720403 is about 11606.9118631960. The cubic root of 134720403 is about 512.6383880101.

Adding to 134720403 its reverse (304027431), we get a palindrome (438747834).

The spelling of 134720403 in words is "one hundred thirty-four million, seven hundred twenty thousand, four hundred three".