133020131 has 4 divisors (see below), whose sum is σ = 134337264. Its totient is φ = 131703000.

The previous prime is 133020119. The next prime is 133020137. The reversal of 133020131 is 131020331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133020131 - 2⁶ = 133020067 is a prime.

It is a super-2 number, since 2×133020131² = 35388710502514322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133020137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 658415 + ... + 658616.

It is an arithmetic number, because the mean of its divisors is an integer number (33584316).

Almost surely, 2^133020131 is an apocalyptic number.

133020131 is a deficient number, since it is larger than the sum of its proper divisors (1317133).

133020131 is a wasteful number, since it uses less digits than its factorization.

133020131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1317132.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 133020131 is about 11533.4353511866. The cubic root of 133020131 is about 510.4726248006.

Adding to 133020131 its reverse (131020331), we get a palindrome (264040462).

The spelling of 133020131 in words is "one hundred thirty-three million, twenty thousand, one hundred thirty-one".