243040960153 has 2 divisors, whose sum is σ = 243040960154. Its totient is φ = 243040960152.

The previous prime is 243040960147. The next prime is 243040960249. The reversal of 243040960153 is 351069040342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 187270831504 + 55770128649 = 432748^2 + 236157^2 .

It is a cyclic number.

It is not a de Polignac number, because 243040960153 - 2¹⁷ = 243040829081 is a prime.

It is not a weakly prime, because it can be changed into another prime (243040963153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121520480076 + 121520480077.

It is an arithmetic number, because the mean of its divisors is an integer number (121520480077).

Almost surely, 2^243040960153 is an apocalyptic number.

It is an amenable number.

243040960153 is a deficient number, since it is larger than the sum of its proper divisors (1).

243040960153 is an equidigital number, since it uses as much as digits as its factorization.

243040960153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 243040960153 in words is "two hundred forty-three billion, forty million, nine hundred sixty thousand, one hundred fifty-three".