133402424 has 16 divisors (see below), whose sum is σ = 258198720. Its totient is φ = 64549440.

The previous prime is 133402361. The next prime is 133402433. The reversal of 133402424 is 424204331.

133402424 = T₁₈₇ + T₁₈₈ + ... + T₉₃₀.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 133402424.

It is a congruent number.

It is an unprimeable number.

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, 268709 + ... + 269204.

It is an arithmetic number, because the mean of its divisors is an integer number (16137420).

Almost surely, 2^133402424 is an apocalyptic number.

It is an amenable number.

133402424 is a deficient number, since it is larger than the sum of its proper divisors (124796296).

133402424 is a wasteful number, since it uses less digits than its factorization.

133402424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537950 (or 537946 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 133402424 is about 11549.9967099562. The cubic root of 133402424 is about 510.9611810744.

Adding to 133402424 its reverse (424204331), we get a palindrome (557606755).

The spelling of 133402424 in words is "one hundred thirty-three million, four hundred two thousand, four hundred twenty-four".