125343211 has 4 divisors (see below), whose sum is σ = 143249392. Its totient is φ = 107437032.

The previous prime is 125343173. The next prime is 125343223. The reversal of 125343211 is 112343521.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125343211 - 2²¹ = 123246059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125343241) 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 3 ways as a sum of consecutive naturals, for example, 8953080 + ... + 8953093.

It is an arithmetic number, because the mean of its divisors is an integer number (35812348).

Almost surely, 2^125343211 is an apocalyptic number.

125343211 is a deficient number, since it is larger than the sum of its proper divisors (17906181).

125343211 is an equidigital number, since it uses as much as digits as its factorization.

125343211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17906180.

The product of its digits is 720, while the sum is 22.

The square root of 125343211 is about 11195.6782286738. The cubic root of 125343211 is about 500.4571964820.

Adding to 125343211 its reverse (112343521), we get a palindrome (237686732).

The spelling of 125343211 in words is "one hundred twenty-five million, three hundred forty-three thousand, two hundred eleven".