1313923 has 8 divisors (see below), whose sum is σ = 1442448. Its totient is φ = 1189344.

The previous prime is 1313911. The next prime is 1313929. The reversal of 1313923 is 3293131.

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

It is not a de Polignac number, because 1313923 - 2⁵ = 1313891 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1313894 and 1313903.

It is not an unprimeable number, because it can be changed into a prime (1313929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265 + ... + 1642.

It is an arithmetic number, because the mean of its divisors is an integer number (180306).

2^1313923 is an apocalyptic number.

1313923 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1313923 is a deficient number, since it is larger than the sum of its proper divisors (128525).

1313923 is a wasteful number, since it uses less digits than its factorization.

1313923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1973.

The product of its digits is 486, while the sum is 22.

The square root of 1313923 is about 1146.2648036121. The cubic root of 1313923 is about 109.5275328137.

The spelling of 1313923 in words is "one million, three hundred thirteen thousand, nine hundred twenty-three".