1220104546 has 8 divisors (see below), whose sum is σ = 1838831184. Its totient is φ = 607160820.

The previous prime is 1220104531. The next prime is 1220104547. The reversal of 1220104546 is 6454010221.

It is a happy number.

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

It is a super-2 number, since 2×1220104546² = 2977310206339732232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1220104546.

It is not an unprimeable number, because it can be changed into a prime (1220104547) 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 3 ways as a sum of consecutive naturals, for example, 1445200 + ... + 1446043.

It is an arithmetic number, because the mean of its divisors is an integer number (229853898).

Almost surely, 2^1220104546 is an apocalyptic number.

1220104546 is a deficient number, since it is larger than the sum of its proper divisors (618726638).

1220104546 is a wasteful number, since it uses less digits than its factorization.

1220104546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2891456.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 1220104546 is about 34929.9949327222. The cubic root of 1220104546 is about 1068.5602512741.

Adding to 1220104546 its reverse (6454010221), we get a palindrome (7674114767).

The spelling of 1220104546 in words is "one billion, two hundred twenty million, one hundred four thousand, five hundred forty-six".