1311479 has 8 divisors (see below), whose sum is σ = 1431360. Its totient is φ = 1194336.

The previous prime is 1311473. The next prime is 1311481. The reversal of 1311479 is 9741131.

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

It is not a de Polignac number, because 1311479 - 2⁸ = 1311223 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 (1311473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389 + ... + 1665.

It is an arithmetic number, because the mean of its divisors is an integer number (178920).

2^1311479 is an apocalyptic number.

1311479 is a deficient number, since it is larger than the sum of its proper divisors (119881).

1311479 is a wasteful number, since it uses less digits than its factorization.

1311479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369.

The product of its digits is 756, while the sum is 26.

The square root of 1311479 is about 1145.1982361146. The cubic root of 1311479 is about 109.4595807257.

The spelling of 1311479 in words is "one million, three hundred eleven thousand, four hundred seventy-nine".