133245544 has 16 divisors (see below), whose sum is σ = 252846720. Its totient is φ = 65819760.

The previous prime is 133245529. The next prime is 133245557. The reversal of 133245544 is 445542331.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99672 + ... + 100999.

It is an arithmetic number, because the mean of its divisors is an integer number (15802920).

Almost surely, 2^133245544 is an apocalyptic number.

It is an amenable number.

133245544 is a deficient number, since it is larger than the sum of its proper divisors (119601176).

133245544 is a wasteful number, since it uses less digits than its factorization.

133245544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200760 (or 200756 counting only the distinct ones).

The product of its digits is 28800, while the sum is 31.

The square root of 133245544 is about 11543.2033682163. The cubic root of 133245544 is about 510.7608073217.

Adding to 133245544 its reverse (445542331), we get a palindrome (578787875).

The spelling of 133245544 in words is "one hundred thirty-three million, two hundred forty-five thousand, five hundred forty-four".