133556042 has 8 divisors (see below), whose sum is σ = 200389476. Its totient is φ = 66759552.

The previous prime is 133556039. The next prime is 133556069. The reversal of 133556042 is 240655331.

It can be written as a sum of positive squares in 2 ways, for example, as 127260961 + 6295081 = 11281^2 + 2509^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 133555996 and 133556014.

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, 3098 + ... + 16634.

Almost surely, 2^133556042 is an apocalyptic number.

133556042 is a deficient number, since it is larger than the sum of its proper divisors (66833434).

133556042 is a wasteful number, since it uses less digits than its factorization.

133556042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18472.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 133556042 is about 11556.6449283518. The cubic root of 133556042 is about 511.1572362945.

The spelling of 133556042 in words is "one hundred thirty-three million, five hundred fifty-six thousand, forty-two".