1275532963 has 4 divisors (see below), whose sum is σ = 1293498288. Its totient is φ = 1257567640.

The previous prime is 1275532957. The next prime is 1275532969. The reversal of 1275532963 is 3692355721.

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

It is an interprime number because it is at equal distance from previous prime (1275532957) and next prime (1275532969).

It is a cyclic number.

It is not a de Polignac number, because 1275532963 - 2²¹ = 1273435811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1275532969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8982556 + ... + 8982697.

It is an arithmetic number, because the mean of its divisors is an integer number (323374572).

Almost surely, 2^1275532963 is an apocalyptic number.

1275532963 is a deficient number, since it is larger than the sum of its proper divisors (17965325).

1275532963 is an equidigital number, since it uses as much as digits as its factorization.

1275532963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17965324.

The product of its digits is 340200, while the sum is 43.

The square root of 1275532963 is about 35714.6043377216. The cubic root of 1275532963 is about 1084.5025115640.

The spelling of 1275532963 in words is "one billion, two hundred seventy-five million, five hundred thirty-two thousand, nine hundred sixty-three".