1098603481 has 2 divisors, whose sum is σ = 1098603482. Its totient is φ = 1098603480.

The previous prime is 1098603469. The next prime is 1098603523. The reversal of 1098603481 is 1843068901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 769507600 + 329095881 = 27740^2 + 18141^2 .

It is a cyclic number.

It is not a de Polignac number, because 1098603481 - 2¹¹ = 1098601433 is a prime.

It is a super-2 number, since 2×1098603481² = 2413859216930634722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1098603281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549301740 + 549301741.

It is an arithmetic number, because the mean of its divisors is an integer number (549301741).

Almost surely, 2^1098603481 is an apocalyptic number.

It is an amenable number.

1098603481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1098603481 is an equidigital number, since it uses as much as digits as its factorization.

1098603481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 1098603481 is about 33145.1879011117. The cubic root of 1098603481 is about 1031.8430823376.

The spelling of 1098603481 in words is "one billion, ninety-eight million, six hundred three thousand, four hundred eighty-one".