125421411 has 8 divisors (see below), whose sum is σ = 171117760. Its totient is φ = 81669672.

The previous prime is 125421407. The next prime is 125421421. The reversal of 125421411 is 114124521.

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

It is not a de Polignac number, because 125421411 - 2² = 125421407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125421421) 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 7 ways as a sum of consecutive naturals, for example, 486001 + ... + 486258.

It is an arithmetic number, because the mean of its divisors is an integer number (21389720).

Almost surely, 2^125421411 is an apocalyptic number.

125421411 is a deficient number, since it is larger than the sum of its proper divisors (45696349).

125421411 is an equidigital number, since it uses as much as digits as its factorization.

125421411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972305.

The product of its digits is 320, while the sum is 21.

The square root of 125421411 is about 11199.1701031818. The cubic root of 125421411 is about 500.5612510920.

Adding to 125421411 its reverse (114124521), we get a palindrome (239545932).

The spelling of 125421411 in words is "one hundred twenty-five million, four hundred twenty-one thousand, four hundred eleven".