1276487118 has 12 divisors (see below), whose sum is σ = 2765722128. Its totient is φ = 425495700.

The previous prime is 1276487111. The next prime is 1276487131. The reversal of 1276487118 is 8117846721.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1276487111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35457958 + ... + 35457993.

It is an arithmetic number, because the mean of its divisors is an integer number (230476844).

Almost surely, 2^1276487118 is an apocalyptic number.

1276487118 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1276487118 is an abundant number, since it is smaller than the sum of its proper divisors (1489235010).

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

1276487118 is a wasteful number, since it uses less digits than its factorization.

1276487118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70915959 (or 70915956 counting only the distinct ones).

The product of its digits is 150528, while the sum is 45.

The square root of 1276487118 is about 35727.9598913792. The cubic root of 1276487118 is about 1084.7728627583.

The spelling of 1276487118 in words is "one billion, two hundred seventy-six million, four hundred eighty-seven thousand, one hundred eighteen".