985450243 has 2 divisors, whose sum is σ = 985450244. Its totient is φ = 985450242.

The previous prime is 985450231. The next prime is 985450283. The reversal of 985450243 is 342054589.

It is an a-pointer prime, because the next prime (985450283) can be obtained adding 985450243 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 985450243 - 2¹⁷ = 985319171 is a prime.

It is a super-2 number, since 2×985450243² = 1942224362857518098, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 985450196 and 985450205.

It is not a weakly prime, because it can be changed into another prime (985450223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492725121 + 492725122.

It is an arithmetic number, because the mean of its divisors is an integer number (492725122).

Almost surely, 2^985450243 is an apocalyptic number.

985450243 is a deficient number, since it is larger than the sum of its proper divisors (1).

985450243 is an equidigital number, since it uses as much as digits as its factorization.

985450243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 985450243 is about 31391.8818008733. The cubic root of 985450243 is about 995.1263672909.

The spelling of 985450243 in words is "nine hundred eighty-five million, four hundred fifty thousand, two hundred forty-three".