243892741 has 2 divisors, whose sum is σ = 243892742. Its totient is φ = 243892740.

The previous prime is 243892703. The next prime is 243892751. The reversal of 243892741 is 147298342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 243828225 + 64516 = 15615^2 + 254^2 .

It is a cyclic number.

It is not a de Polignac number, because 243892741 - 2¹⁷ = 243761669 is a prime.

It is a super-2 number, since 2×243892741² = 118967338224986162, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243892694 and 243892703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243892751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121946370 + 121946371.

It is an arithmetic number, because the mean of its divisors is an integer number (121946371).

Almost surely, 2^243892741 is an apocalyptic number.

It is an amenable number.

243892741 is a deficient number, since it is larger than the sum of its proper divisors (1).

243892741 is an equidigital number, since it uses as much as digits as its factorization.

243892741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 40.

The square root of 243892741 is about 15617.0656974990. The cubic root of 243892741 is about 624.7884006893.

The spelling of 243892741 in words is "two hundred forty-three million, eight hundred ninety-two thousand, seven hundred forty-one".