133406456 has 32 divisors (see below), whose sum is σ = 258839280. Its totient is φ = 64416000.

The previous prime is 133406443. The next prime is 133406473. The reversal of 133406456 is 654604331.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31115 + ... + 35141.

Almost surely, 2^133406456 is an apocalyptic number.

It is an amenable number.

133406456 is a deficient number, since it is larger than the sum of its proper divisors (125432824).

133406456 is a wasteful number, since it uses less digits than its factorization.

133406456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4175 (or 4171 counting only the distinct ones).

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

The square root of 133406456 is about 11550.1712541416. The cubic root of 133406456 is about 510.9663288437.

The spelling of 133406456 in words is "one hundred thirty-three million, four hundred six thousand, four hundred fifty-six".