2136454860 has 48 divisors (see below), whose sum is σ = 6054160896. Its totient is φ = 562855872.

The previous prime is 2136454849. The next prime is 2136454891. The reversal of 2136454860 is 684546312.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209524 + ... + 219483.

It is an arithmetic number, because the mean of its divisors is an integer number (126128352).

Almost surely, 2^2136454860 is an apocalyptic number.

2136454860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2136454860 is an abundant number, since it is smaller than the sum of its proper divisors (3917706036).

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

2136454860 is a wasteful number, since it uses less digits than its factorization.

2136454860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429102 (or 429100 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 2136454860 is about 46221.8007005352. The cubic root of 2136454860 is about 1287.9467486632.

The spelling of 2136454860 in words is "two billion, one hundred thirty-six million, four hundred fifty-four thousand, eight hundred sixty".