133955073 has 72 divisors (see below), whose sum is σ = 246376800. Its totient is φ = 71523648.

The previous prime is 133955051. The next prime is 133955083. The reversal of 133955073 is 370559331.

It is a happy number.

133955073 is a `hidden beast` number, since 1 + 3 + 39 + 550 + 73 = 666.

It is not a de Polignac number, because 133955073 - 2⁸ = 133954817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133955033) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1834965 + ... + 1835037.

It is an arithmetic number, because the mean of its divisors is an integer number (3421900).

Almost surely, 2^133955073 is an apocalyptic number.

It is an amenable number.

133955073 is a deficient number, since it is larger than the sum of its proper divisors (112421727).

133955073 is an equidigital number, since it uses as much as digits as its factorization.

133955073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 42525, while the sum is 36.

The square root of 133955073 is about 11573.8961892701. The cubic root of 133955073 is about 511.6657987986.

The spelling of 133955073 in words is "one hundred thirty-three million, nine hundred fifty-five thousand, seventy-three".