237242513 has 2 divisors, whose sum is σ = 237242514. Its totient is φ = 237242512.

The previous prime is 237242491. The next prime is 237242519. The reversal of 237242513 is 315242732.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 236175424 + 1067089 = 15368^2 + 1033^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-237242513 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (237242519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118621256 + 118621257.

It is an arithmetic number, because the mean of its divisors is an integer number (118621257).

Almost surely, 2^237242513 is an apocalyptic number.

It is an amenable number.

237242513 is a deficient number, since it is larger than the sum of its proper divisors (1).

237242513 is an equidigital number, since it uses as much as digits as its factorization.

237242513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 29.

The square root of 237242513 is about 15402.6787605273. The cubic root of 237242513 is about 619.0572848019.

The spelling of 237242513 in words is "two hundred thirty-seven million, two hundred forty-two thousand, five hundred thirteen".