1229523 has 4 divisors (see below), whose sum is σ = 1639368. Its totient is φ = 819680.

The previous prime is 1229521. The next prime is 1229531. The reversal of 1229523 is 3259221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1229523 - 2¹ = 1229521 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 1229493 and 1229502.

It is not an unprimeable number, because it can be changed into a prime (1229521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204918 + ... + 204923.

It is an arithmetic number, because the mean of its divisors is an integer number (409842).

2^1229523 is an apocalyptic number.

1229523 is a deficient number, since it is larger than the sum of its proper divisors (409845).

1229523 is an equidigital number, since it uses as much as digits as its factorization.

1229523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409844.

The product of its digits is 1080, while the sum is 24.

The square root of 1229523 is about 1108.8385815798. The cubic root of 1229523 is about 107.1302748399.

The spelling of 1229523 in words is "one million, two hundred twenty-nine thousand, five hundred twenty-three".