1275963 has 8 divisors (see below), whose sum is σ = 1832208. Its totient is φ = 785184.

The previous prime is 1275947. The next prime is 1275973. The reversal of 1275963 is 3695721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1275963 - 2⁴ = 1275947 is a prime.

1275963 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1275973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16320 + ... + 16397.

It is an arithmetic number, because the mean of its divisors is an integer number (229026).

2^1275963 is an apocalyptic number.

1275963 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1275963 is a deficient number, since it is larger than the sum of its proper divisors (556245).

1275963 is a wasteful number, since it uses less digits than its factorization.

1275963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32733.

The product of its digits is 11340, while the sum is 33.

The square root of 1275963 is about 1129.5853221426. The cubic root of 1275963 is about 108.4624375344.

The spelling of 1275963 in words is "one million, two hundred seventy-five thousand, nine hundred sixty-three".