242632513 has 2 divisors, whose sum is σ = 242632514. Its totient is φ = 242632512.

The previous prime is 242632501. The next prime is 242632519. The reversal of 242632513 is 315236242.

242632513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133471809 + 109160704 = 11553^2 + 10448^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242632513 is a prime.

It is not a weakly prime, because it can be changed into another prime (242632519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121316256 + 121316257.

It is an arithmetic number, because the mean of its divisors is an integer number (121316257).

Almost surely, 2^242632513 is an apocalyptic number.

It is an amenable number.

242632513 is a deficient number, since it is larger than the sum of its proper divisors (1).

242632513 is an equidigital number, since it uses as much as digits as its factorization.

242632513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 28.

The square root of 242632513 is about 15576.6656573222. The cubic root of 242632513 is about 623.7104187584.

Adding to 242632513 its reverse (315236242), we get a palindrome (557868755).

The spelling of 242632513 in words is "two hundred forty-two million, six hundred thirty-two thousand, five hundred thirteen".