243415153 has 2 divisors, whose sum is σ = 243415154. Its totient is φ = 243415152.

The previous prime is 243415147. The next prime is 243415157. The reversal of 243415153 is 351514342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 208167184 + 35247969 = 14428^2 + 5937^2 .

It is a cyclic number.

It is not a de Polignac number, because 243415153 - 2⁵ = 243415121 is a prime.

It is not a weakly prime, because it can be changed into another prime (243415157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121707576 + 121707577.

It is an arithmetic number, because the mean of its divisors is an integer number (121707577).

Almost surely, 2^243415153 is an apocalyptic number.

It is an amenable number.

243415153 is a deficient number, since it is larger than the sum of its proper divisors (1).

243415153 is an equidigital number, since it uses as much as digits as its factorization.

243415153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 28.

The square root of 243415153 is about 15601.7676242149. The cubic root of 243415153 is about 624.3803163505.

Adding to 243415153 its reverse (351514342), we get a palindrome (594929495).

The spelling of 243415153 in words is "two hundred forty-three million, four hundred fifteen thousand, one hundred fifty-three".