133283649 has 8 divisors (see below), whose sum is σ = 178319232. Its totient is φ = 88551920.

The previous prime is 133283627. The next prime is 133283653. The reversal of 133283649 is 946382331.

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

It is a cyclic number.

It is not a de Polignac number, because 133283649 - 2²³ = 124895041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133283609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74937 + ... + 76694.

It is an arithmetic number, because the mean of its divisors is an integer number (22289904).

Almost surely, 2^133283649 is an apocalyptic number.

It is an amenable number.

133283649 is a deficient number, since it is larger than the sum of its proper divisors (45035583).

133283649 is a wasteful number, since it uses less digits than its factorization.

133283649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151927.

The product of its digits is 93312, while the sum is 39.

The square root of 133283649 is about 11544.8537885934. The cubic root of 133283649 is about 510.8094910900.

The spelling of 133283649 in words is "one hundred thirty-three million, two hundred eighty-three thousand, six hundred forty-nine".