133736533 has 6 divisors (see below), whose sum is σ = 155571126. Its totient is φ = 114631272.

The previous prime is 133736527. The next prime is 133736549. The reversal of 133736533 is 335637331.

It can be written as a sum of positive squares in only one way, i.e., 102454884 + 31281649 = 10122^2 + 5593^2 .

It is a de Polignac number, because none of the positive numbers 2^k-133736533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133736503) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1364610 + ... + 1364707.

It is an arithmetic number, because the mean of its divisors is an integer number (25928521).

Almost surely, 2^133736533 is an apocalyptic number.

It is an amenable number.

133736533 is a deficient number, since it is larger than the sum of its proper divisors (21834593).

133736533 is an equidigital number, since it uses as much as digits as its factorization.

133736533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2729331 (or 2729324 counting only the distinct ones).

The product of its digits is 51030, while the sum is 34.

The square root of 133736533 is about 11564.4512623816. The cubic root of 133736533 is about 511.3873962334.

The spelling of 133736533 in words is "one hundred thirty-three million, seven hundred thirty-six thousand, five hundred thirty-three".