1116409457 has 2 divisors, whose sum is σ = 1116409458. Its totient is φ = 1116409456.

The previous prime is 1116409453. The next prime is 1116409487. The reversal of 1116409457 is 7549046111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 953821456 + 162588001 = 30884^2 + 12751^2 .

It is a cyclic number.

It is not a de Polignac number, because 1116409457 - 2² = 1116409453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1116409457.

It is not a weakly prime, because it can be changed into another prime (1116409453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 558204728 + 558204729.

It is an arithmetic number, because the mean of its divisors is an integer number (558204729).

Almost surely, 2^1116409457 is an apocalyptic number.

It is an amenable number.

1116409457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1116409457 is an equidigital number, since it uses as much as digits as its factorization.

1116409457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 1116409457 is about 33412.7140023076. The cubic root of 1116409457 is about 1037.3878779885.

The spelling of 1116409457 in words is "one billion, one hundred sixteen million, four hundred nine thousand, four hundred fifty-seven".