133740211 has 16 divisors (see below), whose sum is σ = 148888800. Its totient is φ = 120109440.

The previous prime is 133740209. The next prime is 133740223. The reversal of 133740211 is 112047331.

It is not a de Polignac number, because 133740211 - 2¹ = 133740209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133740251) 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, 117895 + ... + 119023.

It is an arithmetic number, because the mean of its divisors is an integer number (9305550).

Almost surely, 2^133740211 is an apocalyptic number.

133740211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

133740211 is a deficient number, since it is larger than the sum of its proper divisors (15148589).

133740211 is an equidigital number, since it uses as much as digits as its factorization.

133740211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251 (or 1229 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 133740211 is about 11564.6102831008. The cubic root of 133740211 is about 511.3920842210.

Adding to 133740211 its reverse (112047331), we get a palindrome (245787542).

The spelling of 133740211 in words is "one hundred thirty-three million, seven hundred forty thousand, two hundred eleven".