133420075 has 24 divisors (see below), whose sum is σ = 169989120. Its totient is φ = 103831200.

The previous prime is 133420073. The next prime is 133420081. The reversal of 133420075 is 570024331.

It is not a de Polignac number, because 133420075 - 2¹ = 133420073 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (133420073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 318216 + ... + 318634.

It is an arithmetic number, because the mean of its divisors is an integer number (7082880).

Almost surely, 2^133420075 is an apocalyptic number.

133420075 is a deficient number, since it is larger than the sum of its proper divisors (36569045).

133420075 is a wasteful number, since it uses less digits than its factorization.

133420075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747 (or 742 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 133420075 is about 11550.7607974540. The cubic root of 133420075 is about 510.9837158425.

The spelling of 133420075 in words is "one hundred thirty-three million, four hundred twenty thousand, seventy-five".