133244064 has 36 divisors (see below), whose sum is σ = 378913626. Its totient is φ = 44414592.

The previous prime is 133244047. The next prime is 133244077. The reversal of 133244064 is 460442331.

It can be written as a sum of positive squares in only one way, i.e., 132434064 + 810000 = 11508^2 + 900^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 231039 + ... + 231614.

Almost surely, 2^133244064 is an apocalyptic number.

It is an amenable number.

133244064 is an abundant number, since it is smaller than the sum of its proper divisors (245669562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133244064 is a wasteful number, since it uses less digits than its factorization.

133244064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462669 (or 462658 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 133244064 is about 11543.1392610503. The cubic root of 133244064 is about 510.7589162546.

Adding to 133244064 its reverse (460442331), we get a palindrome (593686395).

The spelling of 133244064 in words is "one hundred thirty-three million, two hundred forty-four thousand, sixty-four".