125141421 has 4 divisors (see below), whose sum is σ = 166855232. Its totient is φ = 83427612.

The previous prime is 125141407. The next prime is 125141441. The reversal of 125141421 is 124141521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 125141421 - 2⁹ = 125140909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125141441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20856901 + ... + 20856906.

It is an arithmetic number, because the mean of its divisors is an integer number (41713808).

Almost surely, 2^125141421 is an apocalyptic number.

It is an amenable number.

125141421 is a deficient number, since it is larger than the sum of its proper divisors (41713811).

125141421 is an equidigital number, since it uses as much as digits as its factorization.

125141421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41713810.

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

The square root of 125141421 is about 11186.6626390537. The cubic root of 125141421 is about 500.1884902672.

Adding to 125141421 its reverse (124141521), we get a palindrome (249282942).

The spelling of 125141421 in words is "one hundred twenty-five million, one hundred forty-one thousand, four hundred twenty-one".