1220604146 has 8 divisors (see below), whose sum is σ = 1831177344. Its totient is φ = 610211700.

The previous prime is 1220604109. The next prime is 1220604157. The reversal of 1220604146 is 6414060221.

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

It is an unprimeable number.

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, 26810 + ... + 56213.

It is an arithmetic number, because the mean of its divisors is an integer number (228897168).

Almost surely, 2^1220604146 is an apocalyptic number.

1220604146 is a deficient number, since it is larger than the sum of its proper divisors (610573198).

1220604146 is an equidigital number, since it uses as much as digits as its factorization.

1220604146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90376.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 1220604146 is about 34937.1456475769. The cubic root of 1220604146 is about 1068.7060802671.

Adding to 1220604146 its reverse (6414060221), we get a palindrome (7634664367).

The spelling of 1220604146 in words is "one billion, two hundred twenty million, six hundred four thousand, one hundred forty-six".