133124145 has 32 divisors (see below), whose sum is σ = 265559040. Its totient is φ = 55323840.

The previous prime is 133124107. The next prime is 133124191. The reversal of 133124145 is 541421331.

It is a happy number.

It is not a de Polignac number, because 133124145 - 2⁶ = 133124081 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56475 + ... + 58784.

It is an arithmetic number, because the mean of its divisors is an integer number (8298720).

Almost surely, 2^133124145 is an apocalyptic number.

133124145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133124145 is a deficient number, since it is larger than the sum of its proper divisors (132434895).

133124145 is a wasteful number, since it uses less digits than its factorization.

133124145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115285.

The product of its digits is 1440, while the sum is 24.

The square root of 133124145 is about 11537.9437076110. The cubic root of 133124145 is about 510.6056434292.

Adding to 133124145 its reverse (541421331), we get a palindrome (674545476).

The spelling of 133124145 in words is "one hundred thirty-three million, one hundred twenty-four thousand, one hundred forty-five".