133100131 has 4 divisors (see below), whose sum is σ = 133127064. Its totient is φ = 133073200.

The previous prime is 133100117. The next prime is 133100153. The reversal of 133100131 is 131001331.

It is a happy number.

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 133100131 - 2¹⁷ = 132969059 is a prime.

It is a super-2 number, since 2×133100131² = 35431289744434322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133100171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3685 + ... + 16726.

It is an arithmetic number, because the mean of its divisors is an integer number (33281766).

Almost surely, 2^133100131 is an apocalyptic number.

133100131 is a deficient number, since it is larger than the sum of its proper divisors (26933).

133100131 is an equidigital number, since it uses as much as digits as its factorization.

133100131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26932.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 133100131 is about 11536.9030073066. The cubic root of 133100131 is about 510.5749392037.

Adding to 133100131 its reverse (131001331), we get a palindrome (264101462).

The spelling of 133100131 in words is "one hundred thirty-three million, one hundred thousand, one hundred thirty-one".