1259279 has 4 divisors (see below), whose sum is σ = 1439184. Its totient is φ = 1079376.

The previous prime is 1259249. The next prime is 1259287. The reversal of 1259279 is 9729521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9729521 = 857 ⋅11353.

It is a cyclic number.

It is not a de Polignac number, because 1259279 - 2¹² = 1255183 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 (1259249) 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, 89942 + ... + 89955.

It is an arithmetic number, because the mean of its divisors is an integer number (359796).

2^1259279 is an apocalyptic number.

1259279 is a deficient number, since it is larger than the sum of its proper divisors (179905).

1259279 is an equidigital number, since it uses as much as digits as its factorization.

1259279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179904.

The product of its digits is 11340, while the sum is 35.

The square root of 1259279 is about 1122.1760111498. The cubic root of 1259279 is about 107.9876243250.

The spelling of 1259279 in words is "one million, two hundred fifty-nine thousand, two hundred seventy-nine".