242099953 has 2 divisors, whose sum is σ = 242099954. Its totient is φ = 242099952.

The previous prime is 242099947. The next prime is 242099969. The reversal of 242099953 is 359990242.

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., 136585969 + 105513984 = 11687^2 + 10272^2 .

It is a cyclic number.

It is not a de Polignac number, because 242099953 - 2¹³ = 242091761 is a prime.

It is a super-2 number, since 2×242099953² = 117224774485204418, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (242099903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121049976 + 121049977.

It is an arithmetic number, because the mean of its divisors is an integer number (121049977).

Almost surely, 2^242099953 is an apocalyptic number.

It is an amenable number.

242099953 is a deficient number, since it is larger than the sum of its proper divisors (1).

242099953 is an equidigital number, since it uses as much as digits as its factorization.

242099953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 242099953 is about 15559.5614655427. The cubic root of 242099953 is about 623.2537520932.

The spelling of 242099953 in words is "two hundred forty-two million, ninety-nine thousand, nine hundred fifty-three".