1225523 has 8 divisors (see below), whose sum is σ = 1362816. Its totient is φ = 1094400.

The previous prime is 1225517. The next prime is 1225529. The reversal of 1225523 is 3255221.

It is an interprime number because it is at equal distance from previous prime (1225517) and next prime (1225529).

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

It is a cyclic number.

It is not a de Polignac number, because 1225523 - 2⁴ = 1225507 is a prime.

It is a super-3 number, since 3×1225523³ = 5521863332961392001, which contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1225495 and 1225504.

It is not an unprimeable number, because it can be changed into a prime (1225529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1118 + ... + 1923.

It is an arithmetic number, because the mean of its divisors is an integer number (170352).

2^1225523 is an apocalyptic number.

1225523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1225523 is a deficient number, since it is larger than the sum of its proper divisors (137293).

1225523 is a wasteful number, since it uses less digits than its factorization.

1225523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3085.

The product of its digits is 600, while the sum is 20.

The square root of 1225523 is about 1107.0334231630. The cubic root of 1225523 is about 107.0139731948.

The spelling of 1225523 in words is "one million, two hundred twenty-five thousand, five hundred twenty-three".