133470331 has 4 divisors (see below), whose sum is σ = 135732600. Its totient is φ = 131208064.

The previous prime is 133470319. The next prime is 133470341. The reversal of 133470331 is 133074331.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133470331 - 2⁷ = 133470203 is a prime.

It is a super-2 number, since 2×133470331² = 35628658514499122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133470296 and 133470305.

It is not an unprimeable number, because it can be changed into a prime (133470341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1131046 + ... + 1131163.

It is an arithmetic number, because the mean of its divisors is an integer number (33933150).

Almost surely, 2^133470331 is an apocalyptic number.

133470331 is a deficient number, since it is larger than the sum of its proper divisors (2262269).

133470331 is an equidigital number, since it uses as much as digits as its factorization.

133470331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2262268.

The product of its (nonzero) digits is 2268, while the sum is 25.

The square root of 133470331 is about 11552.9360337535. The cubic root of 133470331 is about 511.0478660436.

The spelling of 133470331 in words is "one hundred thirty-three million, four hundred seventy thousand, three hundred thirty-one".