125344221 has 4 divisors (see below), whose sum is σ = 167125632. Its totient is φ = 83562812.

The previous prime is 125344199. The next prime is 125344237. The reversal of 125344221 is 122443521.

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 a cyclic number.

It is not a de Polignac number, because 125344221 - 2⁶ = 125344157 is a prime.

It is a super-2 number, since 2×125344221² = 31422347476193682, which contains 22 as substring.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 125344191 and 125344200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125344291) 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, 20890701 + ... + 20890706.

It is an arithmetic number, because the mean of its divisors is an integer number (41781408).

Almost surely, 2^125344221 is an apocalyptic number.

It is an amenable number.

125344221 is a deficient number, since it is larger than the sum of its proper divisors (41781411).

125344221 is an equidigital number, since it uses as much as digits as its factorization.

125344221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41781410.

The product of its digits is 1920, while the sum is 24.

The square root of 125344221 is about 11195.7233352741. The cubic root of 125344221 is about 500.4585406857.

Adding to 125344221 its reverse (122443521), we get a palindrome (247787742).

The spelling of 125344221 in words is "one hundred twenty-five million, three hundred forty-four thousand, two hundred twenty-one".