133313744 has 20 divisors (see below), whose sum is σ = 258629280. Its totient is φ = 66570720.

The previous prime is 133313743. The next prime is 133313749. The reversal of 133313744 is 447313331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133313743) 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, 8459 + ... + 18389.

It is an arithmetic number, because the mean of its divisors is an integer number (12931464).

Almost surely, 2^133313744 is an apocalyptic number.

It is an amenable number.

133313744 is a deficient number, since it is larger than the sum of its proper divisors (125315536).

133313744 is an equidigital number, since it uses as much as digits as its factorization.

133313744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10778 (or 10772 counting only the distinct ones).

The product of its digits is 9072, while the sum is 29.

The square root of 133313744 is about 11546.1571096188. The cubic root of 133313744 is about 510.8479345522.

The spelling of 133313744 in words is "one hundred thirty-three million, three hundred thirteen thousand, seven hundred forty-four".