133741242 has 12 divisors (see below), whose sum is σ = 289772730. Its totient is φ = 44580408.

The previous prime is 133741241. The next prime is 133741249. The reversal of 133741242 is 242147331.

It is a happy number.

133741242 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 114896961 + 18844281 = 10719^2 + 4341^2 .

It is not an unprimeable number, because it can be changed into a prime (133741241) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3715017 + ... + 3715052.

Almost surely, 2^133741242 is an apocalyptic number.

133741242 is an abundant number, since it is smaller than the sum of its proper divisors (156031488).

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

133741242 is a wasteful number, since it uses less digits than its factorization.

133741242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7430077 (or 7430074 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 133741242 is about 11564.6548586631. The cubic root of 133741242 is about 511.3933983206.

Adding to 133741242 its reverse (242147331), we get a palindrome (375888573).

The spelling of 133741242 in words is "one hundred thirty-three million, seven hundred forty-one thousand, two hundred forty-two".