133113413 has 4 divisors (see below), whose sum is σ = 133243308. Its totient is φ = 132983520.

The previous prime is 133113401. The next prime is 133113433. The reversal of 133113413 is 314311331.

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

It can be written as a sum of positive squares in 2 ways, for example, as 87928129 + 45185284 = 9377^2 + 6722^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133113413 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 (133113433) 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, 63398 + ... + 65463.

It is an arithmetic number, because the mean of its divisors is an integer number (33310827).

Almost surely, 2^133113413 is an apocalyptic number.

It is an amenable number.

133113413 is a deficient number, since it is larger than the sum of its proper divisors (129895).

133113413 is a wasteful number, since it uses less digits than its factorization.

133113413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129894.

The product of its digits is 324, while the sum is 20.

The square root of 133113413 is about 11537.4786240322. The cubic root of 133113413 is about 510.5919219839.

Adding to 133113413 its reverse (314311331), we get a palindrome (447424744).

The spelling of 133113413 in words is "one hundred thirty-three million, one hundred thirteen thousand, four hundred thirteen".