135030442 has 4 divisors (see below), whose sum is σ = 202545666. Its totient is φ = 67515220.

The previous prime is 135030437. The next prime is 135030443. The reversal of 135030442 is 244030531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 244030531 = 1583 ⋅154157.

It can be written as a sum of positive squares in only one way, i.e., 113230881 + 21799561 = 10641^2 + 4669^2 .

It is not an unprimeable number, because it can be changed into a prime (135030443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33757609 + ... + 33757612.

Almost surely, 2^135030442 is an apocalyptic number.

135030442 is a deficient number, since it is larger than the sum of its proper divisors (67515224).

135030442 is an equidigital number, since it uses as much as digits as its factorization.

135030442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67515223.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 135030442 is about 11620.2599798800. The cubic root of 135030442 is about 513.0313404293.

Adding to 135030442 its reverse (244030531), we get a palindrome (379060973).

The spelling of 135030442 in words is "one hundred thirty-five million, thirty thousand, four hundred forty-two".