133232401 has 4 divisors (see below), whose sum is σ = 133425904. Its totient is φ = 133038900.

The previous prime is 133232387. The next prime is 133232419. The reversal of 133232401 is 104232331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 133232401 - 2⁷ = 133232273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133232461) 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, 95715 + ... + 97096.

It is an arithmetic number, because the mean of its divisors is an integer number (33356476).

Almost surely, 2^133232401 is an apocalyptic number.

It is an amenable number.

133232401 is a deficient number, since it is larger than the sum of its proper divisors (193503).

133232401 is an equidigital number, since it uses as much as digits as its factorization.

133232401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193502.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 133232401 is about 11542.6340581342. The cubic root of 133232401 is about 510.7440133892.

Adding to 133232401 its reverse (104232331), we get a palindrome (237464732).

It can be divided in two parts, 1332 and 32401, that added together give a palindrome (33733).

The spelling of 133232401 in words is "one hundred thirty-three million, two hundred thirty-two thousand, four hundred one".