1111411649 has 4 divisors (see below), whose sum is σ = 1112407764. Its totient is φ = 1110415536.

The previous prime is 1111411627. The next prime is 1111411657. The reversal of 1111411649 is 9461141111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 504676225 + 606735424 = 22465^2 + 24632^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111411649 - 2¹⁶ = 1111346113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111411549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 496382 + ... + 498615.

It is an arithmetic number, because the mean of its divisors is an integer number (278101941).

Almost surely, 2^1111411649 is an apocalyptic number.

It is an amenable number.

1111411649 is a deficient number, since it is larger than the sum of its proper divisors (996115).

1111411649 is an equidigital number, since it uses as much as digits as its factorization.

1111411649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996114.

The product of its digits is 864, while the sum is 29.

The square root of 1111411649 is about 33337.8410968677. The cubic root of 1111411649 is about 1035.8375443427.

The spelling of 1111411649 in words is "one billion, one hundred eleven million, four hundred eleven thousand, six hundred forty-nine".