133155244 has 6 divisors (see below), whose sum is σ = 233021684. Its totient is φ = 66577620.

The previous prime is 133155241. The next prime is 133155251. The reversal of 133155244 is 442551331.

It is not an unprimeable number, because it can be changed into a prime (133155241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16644402 + ... + 16644409.

Almost surely, 2^133155244 is an apocalyptic number.

It is an amenable number.

133155244 is a deficient number, since it is larger than the sum of its proper divisors (99866440).

133155244 is a wasteful number, since it uses less digits than its factorization.

133155244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33288815 (or 33288813 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 133155244 is about 11539.2913127280. The cubic root of 133155244 is about 510.6454010267.

The spelling of 133155244 in words is "one hundred thirty-three million, one hundred fifty-five thousand, two hundred forty-four".