125221423 has 8 divisors (see below), whose sum is σ = 127904400. Its totient is φ = 122557248.

The previous prime is 125221409. The next prime is 125221427. The reversal of 125221423 is 324122521.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 125221423 - 2¹⁷ = 125090351 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125221394 and 125221403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125221427) 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, 9193 + ... + 18301.

It is an arithmetic number, because the mean of its divisors is an integer number (15988050).

Almost surely, 2^125221423 is an apocalyptic number.

125221423 is a deficient number, since it is larger than the sum of its proper divisors (2682977).

125221423 is an equidigital number, since it uses as much as digits as its factorization.

125221423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9401.

The product of its digits is 960, while the sum is 22.

The square root of 125221423 is about 11190.2378437636. The cubic root of 125221423 is about 500.2950565157.

Adding to 125221423 its reverse (324122521), we get a palindrome (449343944).

The spelling of 125221423 in words is "one hundred twenty-five million, two hundred twenty-one thousand, four hundred twenty-three".