1276472163 has 4 divisors (see below), whose sum is σ = 1701962888. Its totient is φ = 850981440.

The previous prime is 1276472159. The next prime is 1276472191. The reversal of 1276472163 is 3612746721.

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

It is not a de Polignac number, because 1276472163 - 2² = 1276472159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1276472143) 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, 212745358 + ... + 212745363.

It is an arithmetic number, because the mean of its divisors is an integer number (425490722).

Almost surely, 2^1276472163 is an apocalyptic number.

1276472163 is a deficient number, since it is larger than the sum of its proper divisors (425490725).

1276472163 is an equidigital number, since it uses as much as digits as its factorization.

1276472163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425490724.

The product of its digits is 84672, while the sum is 39.

The square root of 1276472163 is about 35727.7506008985. The cubic root of 1276472163 is about 1084.7686264337.

The spelling of 1276472163 in words is "one billion, two hundred seventy-six million, four hundred seventy-two thousand, one hundred sixty-three".