125644929321 has 8 divisors (see below), whose sum is σ = 167565306304. Its totient is φ = 83743919280.

The previous prime is 125644929287. The next prime is 125644929341. The reversal of 125644929321 is 123929446521.

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

It is not a de Polignac number, because 125644929321 - 2¹⁷ = 125644798249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125644929341) 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, 4826590 + ... + 4852551.

It is an arithmetic number, because the mean of its divisors is an integer number (20945663288).

Almost surely, 2^125644929321 is an apocalyptic number.

It is an amenable number.

125644929321 is a deficient number, since it is larger than the sum of its proper divisors (41920376983).

125644929321 is an equidigital number, since it uses as much as digits as its factorization.

125644929321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9683471.

The product of its digits is 933120, while the sum is 48.

It can be divided in two parts, 125 and 644929321, that added together give a palindrome (644929446).

The spelling of 125644929321 in words is "one hundred twenty-five billion, six hundred forty-four million, nine hundred twenty-nine thousand, three hundred twenty-one".