133402242 has 32 divisors (see below), whose sum is σ = 278535744. Its totient is φ = 42552000.

The previous prime is 133402229. The next prime is 133402253. The reversal of 133402242 is 242204331.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8617 + ... + 18467.

It is an arithmetic number, because the mean of its divisors is an integer number (8704242).

Almost surely, 2^133402242 is an apocalyptic number.

133402242 is an abundant number, since it is smaller than the sum of its proper divisors (145133502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133402242 is a wasteful number, since it uses less digits than its factorization.

133402242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9954.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 133402242 is about 11549.9888311634. The cubic root of 133402242 is about 510.9609487073.

Adding to 133402242 its reverse (242204331), we get a palindrome (375606573).

The spelling of 133402242 in words is "one hundred thirty-three million, four hundred two thousand, two hundred forty-two".