243400124153 has 2 divisors, whose sum is σ = 243400124154. Its totient is φ = 243400124152.

The previous prime is 243400124089. The next prime is 243400124159. The reversal of 243400124153 is 351421004342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126673351744 + 116726772409 = 355912^2 + 341653^2 .

It is a cyclic number.

It is not a de Polignac number, because 243400124153 - 2⁶ = 243400124089 is a prime.

It is not a weakly prime, because it can be changed into another prime (243400124159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121700062076 + 121700062077.

It is an arithmetic number, because the mean of its divisors is an integer number (121700062077).

Almost surely, 2^243400124153 is an apocalyptic number.

It is an amenable number.

243400124153 is a deficient number, since it is larger than the sum of its proper divisors (1).

243400124153 is an equidigital number, since it uses as much as digits as its factorization.

243400124153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 243400124153 its reverse (351421004342), we get a palindrome (594821128495).

The spelling of 243400124153 in words is "two hundred forty-three billion, four hundred million, one hundred twenty-four thousand, one hundred fifty-three".