133222031 has 6 divisors (see below), whose sum is σ = 134619120. Its totient is φ = 131839296.

The previous prime is 133222009. The next prime is 133222039. The reversal of 133222031 is 130222331.

It is not a de Polignac number, because 133222031 - 2¹⁸ = 132959887 is a prime.

It is a super-2 number, since 2×133222031² = 35496219087529922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133222039) 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 5 ways as a sum of consecutive naturals, for example, 2330 + ... + 16488.

It is an arithmetic number, because the mean of its divisors is an integer number (22436520).

Almost surely, 2^133222031 is an apocalyptic number.

133222031 is a deficient number, since it is larger than the sum of its proper divisors (1397089).

133222031 is an frugal number, since it uses more digits than its factorization.

133222031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14353 (or 14256 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 133222031 is about 11542.1848451669. The cubic root of 133222031 is about 510.7307619759.

Adding to 133222031 its reverse (130222331), we get a palindrome (263444362).

The spelling of 133222031 in words is "one hundred thirty-three million, two hundred twenty-two thousand, thirty-one".