133165406 has 8 divisors (see below), whose sum is σ = 217907064. Its totient is φ = 60529720.

The previous prime is 133165397. The next prime is 133165411. The reversal of 133165406 is 604561331.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3026465 + ... + 3026508.

It is an arithmetic number, because the mean of its divisors is an integer number (27238383).

Almost surely, 2^133165406 is an apocalyptic number.

133165406 is a deficient number, since it is larger than the sum of its proper divisors (84741658).

133165406 is a wasteful number, since it uses less digits than its factorization.

133165406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6052986.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 133165406 is about 11539.7316259955. The cubic root of 133165406 is about 510.6583909935.

The spelling of 133165406 in words is "one hundred thirty-three million, one hundred sixty-five thousand, four hundred six".