1100381497 has 2 divisors, whose sum is σ = 1100381498. Its totient is φ = 1100381496.

The previous prime is 1100381489. The next prime is 1100381603. The reversal of 1100381497 is 7941830011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1002292281 + 98089216 = 31659^2 + 9904^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100381497 - 2³ = 1100381489 is a prime.

It is a super-5 number, since 5×1100381497⁵ (a number of 46 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (1100381417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550190748 + 550190749.

It is an arithmetic number, because the mean of its divisors is an integer number (550190749).

Almost surely, 2^1100381497 is an apocalyptic number.

It is an amenable number.

1100381497 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100381497 is an equidigital number, since it uses as much as digits as its factorization.

1100381497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 1100381497 is about 33171.9986886531. The cubic root of 1100381497 is about 1032.3994385622.

The spelling of 1100381497 in words is "one billion, one hundred million, three hundred eighty-one thousand, four hundred ninety-seven".