133430109 has 4 divisors (see below), whose sum is σ = 177906816. Its totient is φ = 88953404.

The previous prime is 133430083. The next prime is 133430111. The reversal of 133430109 is 901034331.

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, and also an emirpimes, since its reverse is a distinct semiprime: 901034331 = 3 ⋅300344777.

It is a cyclic number.

It is not a de Polignac number, because 133430109 - 2¹³ = 133421917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133430159) 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, 22238349 + ... + 22238354.

It is an arithmetic number, because the mean of its divisors is an integer number (44476704).

Almost surely, 2^133430109 is an apocalyptic number.

It is an amenable number.

133430109 is a deficient number, since it is larger than the sum of its proper divisors (44476707).

133430109 is an equidigital number, since it uses as much as digits as its factorization.

133430109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44476706.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 133430109 is about 11551.1951329722. The cubic root of 133430109 is about 510.9965252144.

The spelling of 133430109 in words is "one hundred thirty-three million, four hundred thirty thousand, one hundred nine".