133233031 has 2 divisors, whose sum is σ = 133233032. Its totient is φ = 133233030.

The previous prime is 133233017. The next prime is 133233119. The reversal of 133233031 is 130332331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133233031 - 2⁵ = 133232999 is a prime.

It is a super-2 number, since 2×133233031² = 35502081098893922, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133233431) 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 as a sum of consecutive naturals, namely, 66616515 + 66616516.

It is an arithmetic number, because the mean of its divisors is an integer number (66616516).

Almost surely, 2^133233031 is an apocalyptic number.

133233031 is a deficient number, since it is larger than the sum of its proper divisors (1).

133233031 is an equidigital number, since it uses as much as digits as its factorization.

133233031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 19.

The square root of 133233031 is about 11542.6613482333. The cubic root of 133233031 is about 510.7448184191.

Adding to 133233031 its reverse (130332331), we get a palindrome (263565362).

The spelling of 133233031 in words is "one hundred thirty-three million, two hundred thirty-three thousand, thirty-one".