1612542323125 has 20 divisors (see below), whose sum is σ = 2015622528700. Its totient is φ = 1289656368000.

The previous prime is 1612542323071. The next prime is 1612542323131. The reversal of 1612542323125 is 5213232452161.

It is a happy number.

It can be written as a sum of positive squares in 10 ways, for example, as 1386607516849 + 225934806276 = 1177543^2 + 475326^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1612542323125 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1769851 + ... + 2521399.

It is an arithmetic number, because the mean of its divisors is an integer number (100781126435).

Almost surely, 2^{1612542323125} is an apocalyptic number.

It is an amenable number.

1612542323125 is a deficient number, since it is larger than the sum of its proper divisors (403080205575).

1612542323125 is an frugal number, since it uses more digits than its factorization.

1612542323125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755002 (or 754987 counting only the distinct ones).

The product of its digits is 86400, while the sum is 37.

Adding to 1612542323125 its reverse (5213232452161), we get a palindrome (6825774775286).

The spelling of 1612542323125 in words is "one trillion, six hundred twelve billion, five hundred forty-two million, three hundred twenty-three thousand, one hundred twenty-five".