133023400 has 24 divisors (see below), whose sum is σ = 309279870. Its totient is φ = 53209280.

The previous prime is 133023391. The next prime is 133023437. The reversal of 133023400 is 4320331.

133023400 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 125037124 + 7986276 = 11182^2 + 2826^2 .

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, 332359 + ... + 332758.

Almost surely, 2^133023400 is an apocalyptic number.

133023400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133023400 is an abundant number, since it is smaller than the sum of its proper divisors (176256470).

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

133023400 is a wasteful number, since it uses less digits than its factorization.

133023400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665133 (or 665124 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 133023400 is about 11533.5770687155. The cubic root of 133023400 is about 510.4768064267.

Adding to 133023400 its reverse (4320331), we get a palindrome (137343731).

The spelling of 133023400 in words is "one hundred thirty-three million, twenty-three thousand, four hundred".