133000244 has 12 divisors (see below), whose sum is σ = 250654404. Its totient is φ = 61384704.

The previous prime is 133000229. The next prime is 133000249. The reversal of 133000244 is 442000331.

It can be written as a sum of positive squares in 2 ways, for example, as 48580900 + 84419344 = 6970^2 + 9188^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133000249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1278797 + ... + 1278900.

It is an arithmetic number, because the mean of its divisors is an integer number (20887867).

Almost surely, 2^133000244 is an apocalyptic number.

It is an amenable number.

133000244 is a deficient number, since it is larger than the sum of its proper divisors (117654160).

133000244 is a wasteful number, since it uses less digits than its factorization.

133000244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2557714 (or 2557712 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 133000244 is about 11532.5731734076. The cubic root of 133000244 is about 510.4471843529.

Adding to 133000244 its reverse (442000331), we get a palindrome (575000575).

The spelling of 133000244 in words is "one hundred thirty-three million, two hundred forty-four", and thus it is an aban number.