1260815106 has 32 divisors (see below), whose sum is σ = 2557329408. Its totient is φ = 414363600.

The previous prime is 1260815093. The next prime is 1260815111. The reversal of 1260815106 is 6015180621.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119131 + ... + 129281.

It is an arithmetic number, because the mean of its divisors is an integer number (79916544).

Almost surely, 2^1260815106 is an apocalyptic number.

1260815106 is an abundant number, since it is smaller than the sum of its proper divisors (1296514302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1260815106 is a wasteful number, since it uses less digits than its factorization.

1260815106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10446.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 1260815106 is about 35507.9583473902. The cubic root of 1260815106 is about 1080.3151532256.

Adding to 1260815106 its reverse (6015180621), we get a palindrome (7275995727).

The spelling of 1260815106 in words is "one billion, two hundred sixty million, eight hundred fifteen thousand, one hundred six".