242515237 has 2 divisors, whose sum is σ = 242515238. Its totient is φ = 242515236.

The previous prime is 242515213. The next prime is 242515261. The reversal of 242515237 is 732515242.

It is a balanced prime because it is at equal distance from previous prime (242515213) and next prime (242515261).

It can be written as a sum of positive squares in only one way, i.e., 236359876 + 6155361 = 15374^2 + 2481^2 .

It is a cyclic number.

It is not a de Polignac number, because 242515237 - 2⁷ = 242515109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 242515199 and 242515208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242515267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121257618 + 121257619.

It is an arithmetic number, because the mean of its divisors is an integer number (121257619).

Almost surely, 2^242515237 is an apocalyptic number.

It is an amenable number.

242515237 is a deficient number, since it is larger than the sum of its proper divisors (1).

242515237 is an equidigital number, since it uses as much as digits as its factorization.

242515237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16800, while the sum is 31.

The square root of 242515237 is about 15572.9007252984. The cubic root of 242515237 is about 623.6099127842.

The spelling of 242515237 in words is "two hundred forty-two million, five hundred fifteen thousand, two hundred thirty-seven".