1301823 has 24 divisors (see below), whose sum is σ = 2071680. Its totient is φ = 784080.

The previous prime is 1301821. The next prime is 1301827. The reversal of 1301823 is 3281031.

It is not a de Polignac number, because 1301823 - 2¹ = 1301821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1301796 and 1301805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3768 + ... + 4098.

It is an arithmetic number, because the mean of its divisors is an integer number (86320).

2^1301823 is an apocalyptic number.

1301823 is a deficient number, since it is larger than the sum of its proper divisors (769857).

1301823 is a wasteful number, since it uses less digits than its factorization.

1301823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1301823 is about 1140.9745834154. The cubic root of 1301823 is about 109.1902800993.

Adding to 1301823 its reverse (3281031), we get a palindrome (4582854).

It can be divided in two parts, 13018 and 23, that added together give a triangular number (13041 = T₁₆₁).

The spelling of 1301823 in words is "one million, three hundred one thousand, eight hundred twenty-three".