133530042 has 32 divisors (see below), whose sum is σ = 279365760. Its totient is φ = 42468800.

The previous prime is 133530031. The next prime is 133530049. The reversal of 133530042 is 240035331.

It is not an unprimeable number, because it can be changed into a prime (133530049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69292 + ... + 71192.

It is an arithmetic number, because the mean of its divisors is an integer number (8730180).

Almost surely, 2^133530042 is an apocalyptic number.

133530042 is an abundant number, since it is smaller than the sum of its proper divisors (145835718).

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

133530042 is a wasteful number, since it uses less digits than its factorization.

133530042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2438.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 133530042 is about 11555.5199796461. The cubic root of 133530042 is about 511.1240643255.

Adding to 133530042 its reverse (240035331), we get a palindrome (373565373).

The spelling of 133530042 in words is "one hundred thirty-three million, five hundred thirty thousand, forty-two".