133129942 has 8 divisors (see below), whose sum is σ = 217849032. Its totient is φ = 60513600.

The previous prime is 133129879. The next prime is 133129951. The reversal of 133129942 is 249921331.

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

It is a junction number, because it is equal to n+sod(n) for n = 133129898 and 133129907.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3025659 + ... + 3025702.

It is an arithmetic number, because the mean of its divisors is an integer number (27231129).

Almost surely, 2^133129942 is an apocalyptic number.

133129942 is a deficient number, since it is larger than the sum of its proper divisors (84719090).

133129942 is a wasteful number, since it uses less digits than its factorization.

133129942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6051374.

The product of its digits is 11664, while the sum is 34.

The square root of 133129942 is about 11538.1949194837. The cubic root of 133129942 is about 510.6130549020.

The spelling of 133129942 in words is "one hundred thirty-three million, one hundred twenty-nine thousand, nine hundred forty-two".