133316405 has 8 divisors (see below), whose sum is σ = 160232352. Its totient is φ = 106484688.

The previous prime is 133316387. The next prime is 133316411. The reversal of 133316405 is 504613331.

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

It is a cyclic number.

It is not a de Polignac number, because 133316405 - 2⁸ = 133316149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17519 + ... + 23948.

It is an arithmetic number, because the mean of its divisors is an integer number (20029044).

Almost surely, 2^133316405 is an apocalyptic number.

It is an amenable number.

133316405 is a deficient number, since it is larger than the sum of its proper divisors (26915947).

133316405 is an equidigital number, since it uses as much as digits as its factorization.

133316405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42115.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 133316405 is about 11546.2723421891. The cubic root of 133316405 is about 510.8513334448.

Adding to 133316405 its reverse (504613331), we get a palindrome (637929736).

The spelling of 133316405 in words is "one hundred thirty-three million, three hundred sixteen thousand, four hundred five".