1260279 has 10 divisors (see below), whose sum is σ = 1882760. Its totient is φ = 840132.

The previous prime is 1260277. The next prime is 1260283. The reversal of 1260279 is 9720621.

It is not a de Polignac number, because 1260279 - 2¹ = 1260277 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1260277) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 7699 + ... + 7860.

It is an arithmetic number, because the mean of its divisors is an integer number (188276).

2^1260279 is an apocalyptic number.

1260279 is a deficient number, since it is larger than the sum of its proper divisors (622481).

1260279 is an equidigital number, since it uses as much as digits as its factorization.

1260279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15571 (or 15562 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 1260279 is about 1122.6214856308. The cubic root of 1260279 is about 108.0162012732.

The spelling of 1260279 in words is "one million, two hundred sixty thousand, two hundred seventy-nine".