133601283 has 24 divisors (see below), whose sum is σ = 207397008. Its totient is φ = 82570752.

The previous prime is 133601257. The next prime is 133601353. The reversal of 133601283 is 382106331.

It is a happy number.

133601283 is a `hidden beast` number, since 1 + 33 + 601 + 28 + 3 = 666.

It is not a de Polignac number, because 133601283 - 2¹³ = 133593091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133601203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3735 + ... + 16767.

It is an arithmetic number, because the mean of its divisors is an integer number (8641542).

Almost surely, 2^133601283 is an apocalyptic number.

133601283 is a deficient number, since it is larger than the sum of its proper divisors (73795725).

133601283 is a wasteful number, since it uses less digits than its factorization.

133601283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13123 (or 13120 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 133601283 is about 11558.6021213640. The cubic root of 133601283 is about 511.2149465349.

The spelling of 133601283 in words is "one hundred thirty-three million, six hundred one thousand, two hundred eighty-three".