1275321463 has 4 divisors (see below), whose sum is σ = 1373423128. Its totient is φ = 1177219800.

The previous prime is 1275321433. The next prime is 1275321491. The reversal of 1275321463 is 3641235721.

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

It is a cyclic number.

It is not a de Polignac number, because 1275321463 - 2¹³ = 1275313271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1275321433) 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, 49050813 + ... + 49050838.

It is an arithmetic number, because the mean of its divisors is an integer number (343355782).

Almost surely, 2^1275321463 is an apocalyptic number.

1275321463 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1275321463 is a deficient number, since it is larger than the sum of its proper divisors (98101665).

1275321463 is an equidigital number, since it uses as much as digits as its factorization.

1275321463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98101664.

The product of its digits is 30240, while the sum is 34.

The square root of 1275321463 is about 35711.6432413856. The cubic root of 1275321463 is about 1084.4425666974.

The spelling of 1275321463 in words is "one billion, two hundred seventy-five million, three hundred twenty-one thousand, four hundred sixty-three".