133445151 has 48 divisors (see below), whose sum is σ = 240531200. Its totient is φ = 72223488.

The previous prime is 133445129. The next prime is 133445161. The reversal of 133445151 is 151544331.

It is a happy number.

It is not a de Polignac number, because 133445151 - 2⁷ = 133445023 is a prime.

It is a super-3 number, since 3×133445151³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133445161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30255 + ... + 34383.

Almost surely, 2^133445151 is an apocalyptic number.

133445151 is a deficient number, since it is larger than the sum of its proper divisors (107086049).

133445151 is an equidigital number, since it uses as much as digits as its factorization.

133445151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4170 (or 4158 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 133445151 is about 11551.8462160817. The cubic root of 133445151 is about 511.0157265799.

Adding to 133445151 its reverse (151544331), we get a palindrome (284989482).

The spelling of 133445151 in words is "one hundred thirty-three million, four hundred forty-five thousand, one hundred fifty-one".