133747048 has 8 divisors (see below), whose sum is σ = 250775730. Its totient is φ = 66873520.

The previous prime is 133747039. The next prime is 133747049. The reversal of 133747048 is 840747331.

It can be written as a sum of positive squares in only one way, i.e., 89151364 + 44595684 = 9442^2 + 6678^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 133746998 and 133747016.

It is not an unprimeable number, because it can be changed into a prime (133747049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8359183 + ... + 8359198.

Almost surely, 2^133747048 is an apocalyptic number.

It is an amenable number.

133747048 is a deficient number, since it is larger than the sum of its proper divisors (117028682).

133747048 is a wasteful number, since it uses less digits than its factorization.

133747048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16718387 (or 16718383 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 133747048 is about 11564.9058794268. The cubic root of 133747048 is about 511.4007984490.

The spelling of 133747048 in words is "one hundred thirty-three million, seven hundred forty-seven thousand, forty-eight".