133466405 has 8 divisors (see below), whose sum is σ = 169580952. Its totient is φ = 100492288.

The previous prime is 133466387. The next prime is 133466413. The reversal of 133466405 is 504664331.

It can be written as a sum of positive squares in 4 ways, for example, as 2455489 + 131010916 = 1567^2 + 11446^2 .

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 133466405 - 2⁶ = 133466341 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, 785012 + ... + 785181.

It is an arithmetic number, because the mean of its divisors is an integer number (21197619).

Almost surely, 2^133466405 is an apocalyptic number.

It is an amenable number.

133466405 is a deficient number, since it is larger than the sum of its proper divisors (36114547).

133466405 is a wasteful number, since it uses less digits than its factorization.

133466405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570215.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 133466405 is about 11552.7661189864. The cubic root of 133466405 is about 511.0428552082.

The spelling of 133466405 in words is "one hundred thirty-three million, four hundred sixty-six thousand, four hundred five".