133550536 has 16 divisors (see below), whose sum is σ = 286179840. Its totient is φ = 57235920.

The previous prime is 133550509. The next prime is 133550537. The reversal of 133550536 is 635055331.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 133550498 and 133550507.

It is not an unprimeable number, because it can be changed into a prime (133550537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1192360 + ... + 1192471.

It is an arithmetic number, because the mean of its divisors is an integer number (17886240).

Almost surely, 2^133550536 is an apocalyptic number.

It is an amenable number.

133550536 is an abundant number, since it is smaller than the sum of its proper divisors (152629304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133550536 is a wasteful number, since it uses less digits than its factorization.

133550536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2384844 (or 2384840 counting only the distinct ones).

The product of its (nonzero) digits is 20250, while the sum is 31.

The square root of 133550536 is about 11556.4067079694. The cubic root of 133550536 is about 511.1502118515.

The spelling of 133550536 in words is "one hundred thirty-three million, five hundred fifty thousand, five hundred thirty-six".