1146615220 has 24 divisors (see below), whose sum is σ = 2443833504. Its totient is φ = 451800096.

The previous prime is 1146615209. The next prime is 1146615227. The reversal of 1146615220 is 225166411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1146615227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 426502 + ... + 429181.

It is an arithmetic number, because the mean of its divisors is an integer number (101826396).

Almost surely, 2^1146615220 is an apocalyptic number.

1146615220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1146615220 is an abundant number, since it is smaller than the sum of its proper divisors (1297218284).

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

1146615220 is a wasteful number, since it uses less digits than its factorization.

1146615220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855759 (or 855757 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 1146615220 is about 33861.7072812344. The cubic root of 1146615220 is about 1046.6606594018.

The spelling of 1146615220 in words is "one billion, one hundred forty-six million, six hundred fifteen thousand, two hundred twenty".