242152905 has 16 divisors (see below), whose sum is σ = 387825984. Its totient is φ = 129021120.

The previous prime is 242152903. The next prime is 242152907. The reversal of 242152905 is 509251242.

It is an interprime number because it is at equal distance from previous prime (242152903) and next prime (242152907).

It is not a de Polignac number, because 242152905 - 2¹ = 242152903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242152903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8967 + ... + 23763.

It is an arithmetic number, because the mean of its divisors is an integer number (24239124).

Almost surely, 2^242152905 is an apocalyptic number.

It is an amenable number.

242152905 is a deficient number, since it is larger than the sum of its proper divisors (145673079).

242152905 is a wasteful number, since it uses less digits than its factorization.

242152905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15896.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 242152905 is about 15561.2629628832. The cubic root of 242152905 is about 623.2991880470.

The spelling of 242152905 in words is "two hundred forty-two million, one hundred fifty-two thousand, nine hundred five".