242155115430125 has 16 divisors (see below), whose sum is σ = 302234250098352. Its totient is φ = 193708280779200.

The previous prime is 242155115430091. The next prime is 242155115430197. The reversal of 242155115430125 is 521034511551242.

It can be written as a sum of positive squares in 8 ways, for example, as 33110334288964 + 209044781141161 = 5754158^2 + 14458381^2 .

It is a de Polignac number, because none of the positive numbers 2^k-242155115430125 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77520074 + ... + 80583323.

It is an arithmetic number, because the mean of its divisors is an integer number (18889640631147).

Almost surely, 2^{242155115430125} is an apocalyptic number.

242155115430125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

242155115430125 is a deficient number, since it is larger than the sum of its proper divisors (60079134668227).

242155115430125 is a wasteful number, since it uses less digits than its factorization.

242155115430125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158115665 (or 158115655 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 41.

Adding to 242155115430125 its reverse (521034511551242), we get a palindrome (763189626981367).

The spelling of 242155115430125 in words is "two hundred forty-two trillion, one hundred fifty-five billion, one hundred fifteen million, four hundred thirty thousand, one hundred twenty-five".