242370157 has 2 divisors, whose sum is σ = 242370158. Its totient is φ = 242370156.

The previous prime is 242370143. The next prime is 242370179. The reversal of 242370157 is 751073242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124300201 + 118069956 = 11149^2 + 10866^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242370157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242370127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121185078 + 121185079.

It is an arithmetic number, because the mean of its divisors is an integer number (121185079).

Almost surely, 2^242370157 is an apocalyptic number.

It is an amenable number.

242370157 is a deficient number, since it is larger than the sum of its proper divisors (1).

242370157 is an equidigital number, since it uses as much as digits as its factorization.

242370157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 242370157 is about 15568.2419367121. The cubic root of 242370157 is about 623.4855338317.

The spelling of 242370157 in words is "two hundred forty-two million, three hundred seventy thousand, one hundred fifty-seven".