1223104540 has 24 divisors (see below), whose sum is σ = 2935451232. Its totient is φ = 419350080.

The previous prime is 1223104471. The next prime is 1223104541. The reversal of 1223104540 is 454013221.

It is a super-2 number, since 2×1223104540² = 2991969431537223200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223104541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4368091 + ... + 4368370.

It is an arithmetic number, because the mean of its divisors is an integer number (122310468).

Almost surely, 2^1223104540 is an apocalyptic number.

1223104540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223104540 is an abundant number, since it is smaller than the sum of its proper divisors (1712346692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1223104540 is a wasteful number, since it uses less digits than its factorization.

1223104540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8736477 (or 8736475 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1223104540 is about 34972.9115173444. The cubic root of 1223104540 is about 1069.4353267105.

Adding to 1223104540 its reverse (454013221), we get a palindrome (1677117761).

The spelling of 1223104540 in words is "one billion, two hundred twenty-three million, one hundred four thousand, five hundred forty".