133722505 has 16 divisors (see below), whose sum is σ = 185019264. Its totient is φ = 90881280.

The previous prime is 133722503. The next prime is 133722571. The reversal of 133722505 is 505227331.

It is not a de Polignac number, because 133722505 - 2¹ = 133722503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133722503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12951 + ... + 20860.

It is an arithmetic number, because the mean of its divisors is an integer number (11563704).

Almost surely, 2^133722505 is an apocalyptic number.

It is an amenable number.

133722505 is a deficient number, since it is larger than the sum of its proper divisors (51296759).

133722505 is a wasteful number, since it uses less digits than its factorization.

133722505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33936.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 133722505 is about 11563.8447326138. The cubic root of 133722505 is about 511.3695153222.

Adding to 133722505 its reverse (505227331), we get a palindrome (638949836).

The spelling of 133722505 in words is "one hundred thirty-three million, seven hundred twenty-two thousand, five hundred five".