125216133 has 8 divisors (see below), whose sum is σ = 190805568. Its totient is φ = 71552064.

The previous prime is 125216123. The next prime is 125216149. The reversal of 125216133 is 331612521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125216133 - 2¹⁷ = 125085061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125216123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2981316 + ... + 2981357.

It is an arithmetic number, because the mean of its divisors is an integer number (23850696).

Almost surely, 2^125216133 is an apocalyptic number.

It is an amenable number.

125216133 is a deficient number, since it is larger than the sum of its proper divisors (65589435).

125216133 is an equidigital number, since it uses as much as digits as its factorization.

125216133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5962683.

The product of its digits is 1080, while the sum is 24.

The square root of 125216133 is about 11190.0014745307. The cubic root of 125216133 is about 500.2880114003.

Adding to 125216133 its reverse (331612521), we get a palindrome (456828654).

The spelling of 125216133 in words is "one hundred twenty-five million, two hundred sixteen thousand, one hundred thirty-three".