125534221 has 8 divisors (see below), whose sum is σ = 130053888. Its totient is φ = 121044000.

The previous prime is 125534209. The next prime is 125534261. The reversal of 125534221 is 122435521.

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 125534221 - 2⁷ = 125534093 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 (125534261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1506 + ... + 15916.

It is an arithmetic number, because the mean of its divisors is an integer number (16256736).

Almost surely, 2^125534221 is an apocalyptic number.

It is an amenable number.

125534221 is a deficient number, since it is larger than the sum of its proper divisors (4519667).

125534221 is a wasteful number, since it uses less digits than its factorization.

125534221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14723.

The product of its digits is 2400, while the sum is 25.

The square root of 125534221 is about 11204.2055050771. The cubic root of 125534221 is about 500.7112823417.

Adding to 125534221 its reverse (122435521), we get a palindrome (247969742).

The spelling of 125534221 in words is "one hundred twenty-five million, five hundred thirty-four thousand, two hundred twenty-one".