133366153 has 4 divisors (see below), whose sum is σ = 136619028. Its totient is φ = 130113280.

The previous prime is 133366147. The next prime is 133366159. The reversal of 133366153 is 351663331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 351663331 = 43 ⋅8178217.

It is an interprime number because it is at equal distance from previous prime (133366147) and next prime (133366159).

It can be written as a sum of positive squares in 2 ways, for example, as 44195904 + 89170249 = 6648^2 + 9443^2 .

It is a cyclic number.

It is not a de Polignac number, because 133366153 - 2⁹ = 133365641 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133366159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1626376 + ... + 1626457.

It is an arithmetic number, because the mean of its divisors is an integer number (34154757).

Almost surely, 2^133366153 is an apocalyptic number.

It is an amenable number.

133366153 is a deficient number, since it is larger than the sum of its proper divisors (3252875).

133366153 is an equidigital number, since it uses as much as digits as its factorization.

133366153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3252874.

The product of its digits is 14580, while the sum is 31.

The square root of 133366153 is about 11548.4264296050. The cubic root of 133366153 is about 510.9148681905.

The spelling of 133366153 in words is "one hundred thirty-three million, three hundred sixty-six thousand, one hundred fifty-three".