133226501 has 8 divisors (see below), whose sum is σ = 143376984. Its totient is φ = 123333120.

The previous prime is 133226479. The next prime is 133226519. The reversal of 133226501 is 105622331.

It can be written as a sum of positive squares in 4 ways, for example, as 35414401 + 97812100 = 5951^2 + 9890^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133226501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133226521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63200 + ... + 65273.

It is an arithmetic number, because the mean of its divisors is an integer number (17922123).

Almost surely, 2^133226501 is an apocalyptic number.

It is an amenable number.

133226501 is a deficient number, since it is larger than the sum of its proper divisors (10150483).

133226501 is a wasteful number, since it uses less digits than its factorization.

133226501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128551.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 133226501 is about 11542.3784810584. The cubic root of 133226501 is about 510.7364740966.

Adding to 133226501 its reverse (105622331), we get a palindrome (238848832).

The spelling of 133226501 in words is "one hundred thirty-three million, two hundred twenty-six thousand, five hundred one".