133225331 has 2 divisors, whose sum is σ = 133225332. Its totient is φ = 133225330.

The previous prime is 133225327. The next prime is 133225343. The reversal of 133225331 is 133522331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133225331 - 2² = 133225327 is a prime.

It is a super-2 number, since 2×133225331² = 35497977640119122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133225297 and 133225306.

It is not a weakly prime, because it can be changed into another prime (133225381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66612665 + 66612666.

It is an arithmetic number, because the mean of its divisors is an integer number (66612666).

Almost surely, 2^133225331 is an apocalyptic number.

133225331 is a deficient number, since it is larger than the sum of its proper divisors (1).

133225331 is an equidigital number, since it uses as much as digits as its factorization.

133225331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1620, while the sum is 23.

The square root of 133225331 is about 11542.3277981523. The cubic root of 133225331 is about 510.7349789901.

Adding to 133225331 its reverse (133522331), we get a palindrome (266747662).

The spelling of 133225331 in words is "one hundred thirty-three million, two hundred twenty-five thousand, three hundred thirty-one".