1279955 has 8 divisors (see below), whose sum is σ = 1543104. Its totient is φ = 1019200.

The previous prime is 1279937. The next prime is 1279961. The reversal of 1279955 is 5599721.

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

It is not a de Polignac number, because 1279955 - 2²⁰ = 231379 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 950 + ... + 1860.

It is an arithmetic number, because the mean of its divisors is an integer number (192888).

2^1279955 is an apocalyptic number.

1279955 is a deficient number, since it is larger than the sum of its proper divisors (263149).

1279955 is an equidigital number, since it uses as much as digits as its factorization.

1279955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197.

The product of its digits is 28350, while the sum is 38.

The square root of 1279955 is about 1131.3509623455. The cubic root of 1279955 is about 108.5754322656.

The spelling of 1279955 in words is "one million, two hundred seventy-nine thousand, nine hundred fifty-five".