133233403 has 8 divisors (see below), whose sum is σ = 141186672. Its totient is φ = 125293056.

The previous prime is 133233389. The next prime is 133233407. The reversal of 133233403 is 304332331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133233403 - 2¹⁷ = 133102331 is a prime.

It is a super-2 number, since 2×133233403² = 35502279349920818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133233407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25251 + ... + 30067.

It is an arithmetic number, because the mean of its divisors is an integer number (17648334).

Almost surely, 2^133233403 is an apocalyptic number.

133233403 is a deficient number, since it is larger than the sum of its proper divisors (7953269).

133233403 is a wasteful number, since it uses less digits than its factorization.

133233403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6461.

The product of its (nonzero) digits is 1944, while the sum is 22.

The square root of 133233403 is about 11542.6774623568. The cubic root of 133233403 is about 510.7452937690.

Adding to 133233403 its reverse (304332331), we get a palindrome (437565734).

The spelling of 133233403 in words is "one hundred thirty-three million, two hundred thirty-three thousand, four hundred three".