133240153 has 4 divisors (see below), whose sum is σ = 135228880. Its totient is φ = 131251428.

The previous prime is 133240099. The next prime is 133240157. The reversal of 133240153 is 351042331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133240153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133240157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 994263 + ... + 994396.

It is an arithmetic number, because the mean of its divisors is an integer number (33807220).

Almost surely, 2^133240153 is an apocalyptic number.

It is an amenable number.

133240153 is a deficient number, since it is larger than the sum of its proper divisors (1988727).

133240153 is an equidigital number, since it uses as much as digits as its factorization.

133240153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988726.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 133240153 is about 11542.9698518189. The cubic root of 133240153 is about 510.7539189146.

Adding to 133240153 its reverse (351042331), we get a palindrome (484282484).

The spelling of 133240153 in words is "one hundred thirty-three million, two hundred forty thousand, one hundred fifty-three".