133222501 has 2 divisors, whose sum is σ = 133222502. Its totient is φ = 133222500.

The previous prime is 133222493. The next prime is 133222511. The reversal of 133222501 is 105222331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132365025 + 857476 = 11505^2 + 926^2 .

It is a cyclic number.

It is not a de Polignac number, because 133222501 - 2³ = 133222493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133222511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66611250 + 66611251.

It is an arithmetic number, because the mean of its divisors is an integer number (66611251).

Almost surely, 2^133222501 is an apocalyptic number.

It is an amenable number.

133222501 is a deficient number, since it is larger than the sum of its proper divisors (1).

133222501 is an equidigital number, since it uses as much as digits as its factorization.

133222501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 133222501 is about 11542.2052052457. The cubic root of 133222501 is about 510.7313625852.

Adding to 133222501 its reverse (105222331), we get a palindrome (238444832).

The spelling of 133222501 in words is "one hundred thirty-three million, two hundred twenty-two thousand, five hundred one".