135054442 has 4 divisors (see below), whose sum is σ = 202581666. Its totient is φ = 67527220.

The previous prime is 135054431. The next prime is 135054449. The reversal of 135054442 is 244450531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 134815321 + 239121 = 11611^2 + 489^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 135054442.

It is not an unprimeable number, because it can be changed into a prime (135054449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33763609 + ... + 33763612.

Almost surely, 2^135054442 is an apocalyptic number.

135054442 is a deficient number, since it is larger than the sum of its proper divisors (67527224).

135054442 is an equidigital number, since it uses as much as digits as its factorization.

135054442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67527223.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 135054442 is about 11621.2926131304. The cubic root of 135054442 is about 513.0617336320.

The spelling of 135054442 in words is "one hundred thirty-five million, fifty-four thousand, four hundred forty-two".