243141377 has 2 divisors, whose sum is σ = 243141378. Its totient is φ = 243141376.

The previous prime is 243141341. The next prime is 243141383. The reversal of 243141377 is 773141342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141514816 + 101626561 = 11896^2 + 10081^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243141377 is a prime.

It is a super-2 number, since 2×243141377² = 118235458418912258, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (243141317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121570688 + 121570689.

It is an arithmetic number, because the mean of its divisors is an integer number (121570689).

Almost surely, 2^243141377 is an apocalyptic number.

It is an amenable number.

243141377 is a deficient number, since it is larger than the sum of its proper divisors (1).

243141377 is an equidigital number, since it uses as much as digits as its factorization.

243141377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14112, while the sum is 32.

The square root of 243141377 is about 15592.9912781352. The cubic root of 243141377 is about 624.1461423880.

The spelling of 243141377 in words is "two hundred forty-three million, one hundred forty-one thousand, three hundred seventy-seven".