133147051 has 4 divisors (see below), whose sum is σ = 133482832. Its totient is φ = 132811272.

The previous prime is 133147037. The next prime is 133147057. The reversal of 133147051 is 150741331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 150741331 = 13 ⋅11595487.

It is a cyclic number.

It is not a de Polignac number, because 133147051 - 2⁵ = 133147019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133147057) 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 in 3 ways as a sum of consecutive naturals, for example, 167295 + ... + 168088.

It is an arithmetic number, because the mean of its divisors is an integer number (33370708).

Almost surely, 2^133147051 is an apocalyptic number.

133147051 is a deficient number, since it is larger than the sum of its proper divisors (335781).

133147051 is an equidigital number, since it uses as much as digits as its factorization.

133147051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335780.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 133147051 is about 11538.9363027967. The cubic root of 133147051 is about 510.6349275286.

Adding to 133147051 its reverse (150741331), we get a palindrome (283888382).

The spelling of 133147051 in words is "one hundred thirty-three million, one hundred forty-seven thousand, fifty-one".