133120429 has 4 divisors (see below), whose sum is σ = 143360476. Its totient is φ = 122880384.

The previous prime is 133120423. The next prime is 133120433. The reversal of 133120429 is 924021331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 924021331 = 431 ⋅2143901.

It can be written as a sum of positive squares in 2 ways, for example, as 30503529 + 102616900 = 5523^2 + 10130^2 .

It is a cyclic number.

It is not a de Polignac number, because 133120429 - 2⁷ = 133120301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133120423) 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, 5120004 + ... + 5120029.

It is an arithmetic number, because the mean of its divisors is an integer number (35840119).

Almost surely, 2^133120429 is an apocalyptic number.

It is an amenable number.

133120429 is a deficient number, since it is larger than the sum of its proper divisors (10240047).

133120429 is a wasteful number, since it uses less digits than its factorization.

133120429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10240046.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 133120429 is about 11537.7826725936. The cubic root of 133120429 is about 510.6008924047.

The spelling of 133120429 in words is "one hundred thirty-three million, one hundred twenty thousand, four hundred twenty-nine".