133542748 has 6 divisors (see below), whose sum is σ = 233699816. Its totient is φ = 66771372.

The previous prime is 133542743. The next prime is 133542749. The reversal of 133542748 is 847245331.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133542743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16692840 + ... + 16692847.

Almost surely, 2^133542748 is an apocalyptic number.

It is an amenable number.

133542748 is a deficient number, since it is larger than the sum of its proper divisors (100157068).

133542748 is a wasteful number, since it uses less digits than its factorization.

133542748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33385691 (or 33385689 counting only the distinct ones).

The product of its digits is 80640, while the sum is 37.

The square root of 133542748 is about 11556.0697471069. The cubic root of 133542748 is about 511.1402757495.

The spelling of 133542748 in words is "one hundred thirty-three million, five hundred forty-two thousand, seven hundred forty-eight".