1101408409 has 2 divisors, whose sum is σ = 1101408410. Its totient is φ = 1101408408.

The previous prime is 1101408403. The next prime is 1101408419. The reversal of 1101408409 is 9048041011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1040256009 + 61152400 = 32253^2 + 7820^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101408409 - 2⁷ = 1101408281 is a prime.

It is a super-2 number, since 2×1101408409² = 2426200966831822562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1101408403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550704204 + 550704205.

It is an arithmetic number, because the mean of its divisors is an integer number (550704205).

Almost surely, 2^1101408409 is an apocalyptic number.

It is an amenable number.

1101408409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101408409 is an equidigital number, since it uses as much as digits as its factorization.

1101408409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 1101408409 is about 33187.4736760724. The cubic root of 1101408409 is about 1032.7204950161.

The spelling of 1101408409 in words is "one billion, one hundred one million, four hundred eight thousand, four hundred nine".