1316523 has 8 divisors (see below), whose sum is σ = 1890448. Its totient is φ = 810144.

The previous prime is 1316519. The next prime is 1316527. The reversal of 1316523 is 3256131.

It is an interprime number because it is at equal distance from previous prime (1316519) and next prime (1316527).

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

It is not a de Polignac number, because 1316523 - 2² = 1316519 is a prime.

It is a Duffinian number.

1316523 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1316523.

It is not an unprimeable number, because it can be changed into a prime (1316527) 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, 16840 + ... + 16917.

It is an arithmetic number, because the mean of its divisors is an integer number (236306).

2^1316523 is an apocalyptic number.

1316523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1316523 is a deficient number, since it is larger than the sum of its proper divisors (573925).

1316523 is a wasteful number, since it uses less digits than its factorization.

1316523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33773.

The product of its digits is 540, while the sum is 21.

The square root of 1316523 is about 1147.3983615118. The cubic root of 1316523 is about 109.5997298287.

The spelling of 1316523 in words is "one million, three hundred sixteen thousand, five hundred twenty-three".