1379249 has 4 divisors (see below), whose sum is σ = 1416564. Its totient is φ = 1341936.

The previous prime is 1379239. The next prime is 1379251. The reversal of 1379249 is 9429731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 490000 + 889249 = 700^2 + 943^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1379249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1379239) 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, 18602 + ... + 18675.

It is an arithmetic number, because the mean of its divisors is an integer number (354141).

2^1379249 is an apocalyptic number.

It is an amenable number.

1379249 is a deficient number, since it is larger than the sum of its proper divisors (37315).

1379249 is an equidigital number, since it uses as much as digits as its factorization.

1379249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37314.

The product of its digits is 13608, while the sum is 35.

The square root of 1379249 is about 1174.4143221198. The cubic root of 1379249 is about 111.3134284597.

The spelling of 1379249 in words is "one million, three hundred seventy-nine thousand, two hundred forty-nine".