1098041251 has 2 divisors, whose sum is σ = 1098041252. Its totient is φ = 1098041250.

The previous prime is 1098041209. The next prime is 1098041281. The reversal of 1098041251 is 1521408901.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1098041251 - 2¹³ = 1098033059 is a prime.

It is not a weakly prime, because it can be changed into another prime (1098041281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549020625 + 549020626.

It is an arithmetic number, because the mean of its divisors is an integer number (549020626).

Almost surely, 2^1098041251 is an apocalyptic number.

1098041251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1098041251 is an equidigital number, since it uses as much as digits as its factorization.

1098041251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 1098041251 is about 33136.7054940590. The cubic root of 1098041251 is about 1031.6670309114.

The spelling of 1098041251 in words is "one billion, ninety-eight million, forty-one thousand, two hundred fifty-one".