1098041281 has 2 divisors, whose sum is σ = 1098041282. Its totient is φ = 1098041280.

The previous prime is 1098041251. The next prime is 1098041291. The reversal of 1098041281 is 1821408901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1025024256 + 73017025 = 32016^2 + 8545^2 .

It is a cyclic number.

It is not a de Polignac number, because 1098041281 - 2¹³ = 1098033089 is a prime.

It is a super-2 number, since 2×1098041281² = 2411389309560241922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1098041251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549020640 + 549020641.

It is an arithmetic number, because the mean of its divisors is an integer number (549020641).

Almost surely, 2^1098041281 is an apocalyptic number.

It is an amenable number.

1098041281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1098041281 is an equidigital number, since it uses as much as digits as its factorization.

1098041281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 34.

The square root of 1098041281 is about 33136.7059467292. The cubic root of 1098041281 is about 1031.6670403070.

The spelling of 1098041281 in words is "one billion, ninety-eight million, forty-one thousand, two hundred eighty-one".