133005154 has 4 divisors (see below), whose sum is σ = 199507734. Its totient is φ = 66502576.

The previous prime is 133005137. The next prime is 133005157. The reversal of 133005154 is 451500331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 451500331 = 17 ⋅26558843.

It can be written as a sum of positive squares in only one way, i.e., 132779529 + 225625 = 11523^2 + 475^2 .

It is not an unprimeable number, because it can be changed into a prime (133005157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33251287 + ... + 33251290.

Almost surely, 2^133005154 is an apocalyptic number.

133005154 is a deficient number, since it is larger than the sum of its proper divisors (66502580).

133005154 is an equidigital number, since it uses as much as digits as its factorization.

133005154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66502579.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 133005154 is about 11532.7860467452. The cubic root of 133005154 is about 510.4534657069.

Adding to 133005154 its reverse (451500331), we get a palindrome (584505485).

The spelling of 133005154 in words is "one hundred thirty-three million, five thousand, one hundred fifty-four".