242513603 has 4 divisors (see below), whose sum is σ = 244868208. Its totient is φ = 240159000.

The previous prime is 242513599. The next prime is 242513611. The reversal of 242513603 is 306315242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242513603 - 2² = 242513599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242513693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1177148 + ... + 1177353.

It is an arithmetic number, because the mean of its divisors is an integer number (61217052).

Almost surely, 2^242513603 is an apocalyptic number.

242513603 is a deficient number, since it is larger than the sum of its proper divisors (2354605).

242513603 is a wasteful number, since it uses less digits than its factorization.

242513603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2354604.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 242513603 is about 15572.8482622801. The cubic root of 242513603 is about 623.6085122112.

Adding to 242513603 its reverse (306315242), we get a palindrome (548828845).

The spelling of 242513603 in words is "two hundred forty-two million, five hundred thirteen thousand, six hundred three".