1823523 has 8 divisors (see below), whose sum is σ = 2618448. Its totient is φ = 1122144.

The previous prime is 1823489. The next prime is 1823531. The reversal of 1823523 is 3253281.

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

It is not a de Polignac number, because 1823523 - 2⁹ = 1823011 is a prime.

It is a super-2 number, since 2×1823523² = 6650472263058, which contains 22 as substring.

1823523 is a lucky number.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 1823493 and 1823502.

It is not an unprimeable number, because it can be changed into a prime (1823533) 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, 23340 + ... + 23417.

It is an arithmetic number, because the mean of its divisors is an integer number (327306).

2^1823523 is an apocalyptic number.

1823523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1823523 is a deficient number, since it is larger than the sum of its proper divisors (794925).

1823523 is a wasteful number, since it uses less digits than its factorization.

1823523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46773.

The product of its digits is 1440, while the sum is 24.

The square root of 1823523 is about 1350.3788357346. The cubic root of 1823523 is about 122.1716431980.

It can be divided in two parts, 1823 and 523, that added together give a triangular number (2346 = T₆₈).

The spelling of 1823523 in words is "one million, eight hundred twenty-three thousand, five hundred twenty-three".