1015660049 has 4 divisors (see below), whose sum is σ = 1023073764. Its totient is φ = 1008246336.

The previous prime is 1015660039. The next prime is 1015660081. The reversal of 1015660049 is 9400665101.

1015660049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 791409424 + 224250625 = 28132^2 + 14975^2 .

It is a cyclic number.

It is not a de Polignac number, because 1015660049 - 2⁸ = 1015659793 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1015659997 and 1015660024.

It is not an unprimeable number, because it can be changed into a prime (1015660039) 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, 3706652 + ... + 3706925.

It is an arithmetic number, because the mean of its divisors is an integer number (255768441).

Almost surely, 2^1015660049 is an apocalyptic number.

It is an amenable number.

1015660049 is a deficient number, since it is larger than the sum of its proper divisors (7413715).

1015660049 is an equidigital number, since it uses as much as digits as its factorization.

1015660049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7413714.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 1015660049 is about 31869.4218491644. The cubic root of 1015660049 is about 1005.1930023793.

The spelling of 1015660049 in words is "one billion, fifteen million, six hundred sixty thousand, forty-nine".