133237066 has 8 divisors (see below), whose sum is σ = 201916260. Its totient is φ = 65931648.

The previous prime is 133237061. The next prime is 133237073. The reversal of 133237066 is 660732331.

It can be written as a sum of positive squares in 2 ways, for example, as 132917841 + 319225 = 11529^2 + 565^2 .

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

It is not an unprimeable number, because it can be changed into a prime (133237061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343201 + ... + 343588.

Almost surely, 2^133237066 is an apocalyptic number.

133237066 is a deficient number, since it is larger than the sum of its proper divisors (68679194).

133237066 is an equidigital number, since it uses as much as digits as its factorization.

133237066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686888.

The product of its (nonzero) digits is 13608, while the sum is 31.

The square root of 133237066 is about 11542.8361332906. The cubic root of 133237066 is about 510.7499743842.

Adding to 133237066 its reverse (660732331), we get a palindrome (793969397).

The spelling of 133237066 in words is "one hundred thirty-three million, two hundred thirty-seven thousand, sixty-six".