242265511 has 2 divisors, whose sum is σ = 242265512. Its totient is φ = 242265510.

The previous prime is 242265497. The next prime is 242265533. The reversal of 242265511 is 115562242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242265511 - 2⁷ = 242265383 is a prime.

It is a super-2 number, since 2×242265511² = 117385155640182242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 242265511.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242265571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121132755 + 121132756.

It is an arithmetic number, because the mean of its divisors is an integer number (121132756).

Almost surely, 2^242265511 is an apocalyptic number.

242265511 is a deficient number, since it is larger than the sum of its proper divisors (1).

242265511 is an equidigital number, since it uses as much as digits as its factorization.

242265511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4800, while the sum is 28.

The square root of 242265511 is about 15564.8806934072. The cubic root of 242265511 is about 623.3957886524.

The spelling of 242265511 in words is "two hundred forty-two million, two hundred sixty-five thousand, five hundred eleven".