242456453 has 2 divisors, whose sum is σ = 242456454. Its totient is φ = 242456452.

The previous prime is 242456413. The next prime is 242456471. The reversal of 242456453 is 354654242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 164275489 + 78180964 = 12817^2 + 8842^2 .

It is a cyclic number.

It is not a de Polignac number, because 242456453 - 2¹⁰ = 242455429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242456413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121228226 + 121228227.

It is an arithmetic number, because the mean of its divisors is an integer number (121228227).

Almost surely, 2^242456453 is an apocalyptic number.

It is an amenable number.

242456453 is a deficient number, since it is larger than the sum of its proper divisors (1).

242456453 is an equidigital number, since it uses as much as digits as its factorization.

242456453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 115200, while the sum is 35.

The square root of 242456453 is about 15571.0132297163. The cubic root of 242456453 is about 623.5595224831.

The spelling of 242456453 in words is "two hundred forty-two million, four hundred fifty-six thousand, four hundred fifty-three".