1616142252 has 24 divisors (see below), whose sum is σ = 3772263600. Its totient is φ = 538533376.

The previous prime is 1616142217. The next prime is 1616142259. The reversal of 1616142252 is 2522416161.

It is a super-2 number, since 2×1616142252² = 5223831557399263008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1616142259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17524 + ... + 59492.

It is an arithmetic number, because the mean of its divisors is an integer number (157177650).

Almost surely, 2^1616142252 is an apocalyptic number.

1616142252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1616142252 is an abundant number, since it is smaller than the sum of its proper divisors (2156121348).

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

1616142252 is a wasteful number, since it uses less digits than its factorization.

1616142252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45185 (or 45183 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 1616142252 is about 40201.2717709278. The cubic root of 1616142252 is about 1173.5272937860.

The spelling of 1616142252 in words is "one billion, six hundred sixteen million, one hundred forty-two thousand, two hundred fifty-two".