20147230125 has 48 divisors (see below), whose sum is σ = 39620468160. Its totient is φ = 9768348000.

The previous prime is 20147230123. The next prime is 20147230183. The reversal of 20147230125 is 52103274102.

It is not a de Polignac number, because 20147230125 - 2¹ = 20147230123 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20147230123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 801655 + ... + 826404.

It is an arithmetic number, because the mean of its divisors is an integer number (825426420).

Almost surely, 2^20147230125 is an apocalyptic number.

20147230125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20147230125 is a deficient number, since it is larger than the sum of its proper divisors (19473238035).

20147230125 is a wasteful number, since it uses less digits than its factorization.

20147230125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1628091 (or 1628078 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The spelling of 20147230125 in words is "twenty billion, one hundred forty-seven million, two hundred thirty thousand, one hundred twenty-five".