242538029 has 2 divisors, whose sum is σ = 242538030. Its totient is φ = 242538028.

The previous prime is 242537989. The next prime is 242538053. The reversal of 242538029 is 920835242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 224940004 + 17598025 = 14998^2 + 4195^2 .

It is a cyclic number.

It is not a de Polignac number, because 242538029 - 2²⁴ = 225760813 is a prime.

It is a super-2 number, since 2×242538029² = 117649391022409682, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 242538029.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242538089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121269014 + 121269015.

It is an arithmetic number, because the mean of its divisors is an integer number (121269015).

Almost surely, 2^242538029 is an apocalyptic number.

It is an amenable number.

242538029 is a deficient number, since it is larger than the sum of its proper divisors (1).

242538029 is an equidigital number, since it uses as much as digits as its factorization.

242538029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 242538029 is about 15573.6324921323. The cubic root of 242538029 is about 623.6294481504.

The spelling of 242538029 in words is "two hundred forty-two million, five hundred thirty-eight thousand, twenty-nine".