1295663 has 4 divisors (see below), whose sum is σ = 1307880. Its totient is φ = 1283448.

The previous prime is 1295653. The next prime is 1295681. The reversal of 1295663 is 3665921.

It is a happy number.

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 1295663 - 2⁴ = 1295647 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 (1295603) 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, 5948 + ... + 6161.

It is an arithmetic number, because the mean of its divisors is an integer number (326970).

2^1295663 is an apocalyptic number.

1295663 is a deficient number, since it is larger than the sum of its proper divisors (12217).

1295663 is a wasteful number, since it uses less digits than its factorization.

1295663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12216.

The product of its digits is 9720, while the sum is 32.

The square root of 1295663 is about 1138.2719358747. The cubic root of 1295663 is about 109.0177846019.

The spelling of 1295663 in words is "one million, two hundred ninety-five thousand, six hundred sixty-three".