133599001 has 4 divisors (see below), whose sum is σ = 133622272. Its totient is φ = 133575732.

The previous prime is 133598999. The next prime is 133599029. The reversal of 133599001 is 100995331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 133599001 - 2¹ = 133598999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133599071) 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 3 ways as a sum of consecutive naturals, for example, 3820 + ... + 16786.

It is an arithmetic number, because the mean of its divisors is an integer number (33405568).

Almost surely, 2^133599001 is an apocalyptic number.

It is an amenable number.

133599001 is a deficient number, since it is larger than the sum of its proper divisors (23271).

133599001 is a wasteful number, since it uses less digits than its factorization.

133599001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23270.

The product of its (nonzero) digits is 3645, while the sum is 31.

The square root of 133599001 is about 11558.5034065834. The cubic root of 133599001 is about 511.2120358863.

The spelling of 133599001 in words is "one hundred thirty-three million, five hundred ninety-nine thousand, one".