133422131 has 2 divisors, whose sum is σ = 133422132. Its totient is φ = 133422130.

The previous prime is 133422101. The next prime is 133422139. The reversal of 133422131 is 131224331.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133422131 is a prime.

It is a super-2 number, since 2×133422131² = 35602930081162322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (133422139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66711065 + 66711066.

It is an arithmetic number, because the mean of its divisors is an integer number (66711066).

Almost surely, 2^133422131 is an apocalyptic number.

133422131 is a deficient number, since it is larger than the sum of its proper divisors (1).

133422131 is an equidigital number, since it uses as much as digits as its factorization.

133422131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 20.

The square root of 133422131 is about 11550.8497955778. The cubic root of 133422131 is about 510.9863405777.

Adding to 133422131 its reverse (131224331), we get a palindrome (264646462).

The spelling of 133422131 in words is "one hundred thirty-three million, four hundred twenty-two thousand, one hundred thirty-one".