133655072 has 12 divisors (see below), whose sum is σ = 263133486. Its totient is φ = 66827520.

The previous prime is 133655057. The next prime is 133655077. The reversal of 133655072 is 270556331.

It can be written as a sum of positive squares in only one way, i.e., 113976976 + 19678096 = 10676^2 + 4436^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 4176721 = 133655072 / (1 + 3 + 3 + 6 + 5 + 5 + 0 + 7 + 2).

It is not an unprimeable number, because it can be changed into a prime (133655077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2088329 + ... + 2088392.

Almost surely, 2^133655072 is an apocalyptic number.

It is an amenable number.

133655072 is a deficient number, since it is larger than the sum of its proper divisors (129478414).

133655072 is an equidigital number, since it uses as much as digits as its factorization.

133655072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4176731 (or 4176723 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 32.

The square root of 133655072 is about 11560.9286824199. The cubic root of 133655072 is about 511.2835438085.

The spelling of 133655072 in words is "one hundred thirty-three million, six hundred fifty-five thousand, seventy-two".