1275998 has 8 divisors (see below), whose sum is σ = 1945560. Its totient is φ = 627480.

The previous prime is 1275979. The next prime is 1276001. The reversal of 1275998 is 8995721.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5108 + ... + 5351.

It is an arithmetic number, because the mean of its divisors is an integer number (243195).

2^1275998 is an apocalyptic number.

1275998 is a deficient number, since it is larger than the sum of its proper divisors (669562).

1275998 is a wasteful number, since it uses less digits than its factorization.

1275998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10522.

The product of its digits is 45360, while the sum is 41.

The square root of 1275998 is about 1129.6008144473. The cubic root of 1275998 is about 108.4634292430.

The spelling of 1275998 in words is "one million, two hundred seventy-five thousand, nine hundred ninety-eight".