133917656 has 16 divisors (see below), whose sum is σ = 253319400. Its totient is φ = 66365824.

The previous prime is 133917629. The next prime is 133917671. The reversal of 133917656 is 656719331.

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 3 ways as a sum of consecutive naturals, for example, 73166 + ... + 74973.

Almost surely, 2^133917656 is an apocalyptic number.

It is an amenable number.

133917656 is a deficient number, since it is larger than the sum of its proper divisors (119401744).

133917656 is a wasteful number, since it uses less digits than its factorization.

133917656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148258 (or 148254 counting only the distinct ones).

The product of its digits is 102060, while the sum is 41.

The square root of 133917656 is about 11572.2796371329. The cubic root of 133917656 is about 511.6181540135.

The spelling of 133917656 in words is "one hundred thirty-three million, nine hundred seventeen thousand, six hundred fifty-six".