242152021526 has 12 divisors (see below), whose sum is σ = 379707188532. Its totient is φ = 115811835876.

The previous prime is 242152021487. The next prime is 242152021543. The reversal of 242152021526 is 625120251242.

It is a junction number, because it is equal to n+sod(n) for n = 242152021492 and 242152021501.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 114437516 + ... + 114439631.

It is an arithmetic number, because the mean of its divisors is an integer number (31642265711).

Almost surely, 2^242152021526 is an apocalyptic number.

242152021526 is a deficient number, since it is larger than the sum of its proper divisors (137555167006).

242152021526 is a wasteful number, since it uses less digits than its factorization.

242152021526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228877195 (or 228877172 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 242152021526 its reverse (625120251242), we get a palindrome (867272272768).

The spelling of 242152021526 in words is "two hundred forty-two billion, one hundred fifty-two million, twenty-one thousand, five hundred twenty-six".