242125157 has 2 divisors, whose sum is σ = 242125158. Its totient is φ = 242125156.

The previous prime is 242125141. The next prime is 242125181. The reversal of 242125157 is 751521242.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 231009601 + 11115556 = 15199^2 + 3334^2 .

It is a cyclic number.

It is not a de Polignac number, because 242125157 - 2⁴ = 242125141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242125187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121062578 + 121062579.

It is an arithmetic number, because the mean of its divisors is an integer number (121062579).

Almost surely, 2^242125157 is an apocalyptic number.

It is an amenable number.

242125157 is a deficient number, since it is larger than the sum of its proper divisors (1).

242125157 is an equidigital number, since it uses as much as digits as its factorization.

242125157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5600, while the sum is 29.

The square root of 242125157 is about 15560.3713644630. The cubic root of 242125157 is about 623.2753794449.

Adding to 242125157 its reverse (751521242), we get a palindrome (993646399).

The spelling of 242125157 in words is "two hundred forty-two million, one hundred twenty-five thousand, one hundred fifty-seven".