133742542 has 16 divisors (see below), whose sum is σ = 205250112. Its totient is φ = 65331040.

The previous prime is 133742537. The next prime is 133742569. The reversal of 133742542 is 245247331.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76308 + ... + 78040.

It is an arithmetic number, because the mean of its divisors is an integer number (12828132).

Almost surely, 2^133742542 is an apocalyptic number.

133742542 is a deficient number, since it is larger than the sum of its proper divisors (71507570).

133742542 is a wasteful number, since it uses less digits than its factorization.

133742542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2603.

The product of its digits is 20160, while the sum is 31.

The square root of 133742542 is about 11564.7110642679. The cubic root of 133742542 is about 511.3950552746.

Adding to 133742542 its reverse (245247331), we get a palindrome (378989873).

The spelling of 133742542 in words is "one hundred thirty-three million, seven hundred forty-two thousand, five hundred forty-two".