243161351 has 2 divisors, whose sum is σ = 243161352. Its totient is φ = 243161350.

The previous prime is 243161333. The next prime is 243161357. The reversal of 243161351 is 153161342.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243161351 - 2⁶ = 243161287 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 243161351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243161357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121580675 + 121580676.

It is an arithmetic number, because the mean of its divisors is an integer number (121580676).

Almost surely, 2^243161351 is an apocalyptic number.

243161351 is a deficient number, since it is larger than the sum of its proper divisors (1).

243161351 is an equidigital number, since it uses as much as digits as its factorization.

243161351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 26.

The square root of 243161351 is about 15593.6317450426. The cubic root of 243161351 is about 624.1632330670.

Subtracting from 243161351 its reverse (153161342), we obtain a palindrome (90000009).

The spelling of 243161351 in words is "two hundred forty-three million, one hundred sixty-one thousand, three hundred fifty-one".