133081552 has 20 divisors (see below), whose sum is σ = 258053796. Its totient is φ = 66487040.

The previous prime is 133081549. The next prime is 133081561. The reversal of 133081552 is 255180331.

It can be written as a sum of positive squares in 2 ways, for example, as 9960336 + 123121216 = 3156^2 + 11096^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 133081552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23652 + ... + 28732.

Almost surely, 2^133081552 is an apocalyptic number.

It is an amenable number.

133081552 is a deficient number, since it is larger than the sum of its proper divisors (124972244).

133081552 is a wasteful number, since it uses less digits than its factorization.

133081552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6726 (or 6720 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 133081552 is about 11536.0977804455. The cubic root of 133081552 is about 510.5511816183.

The spelling of 133081552 in words is "one hundred thirty-three million, eighty-one thousand, five hundred fifty-two".