2136205540 has 48 divisors (see below), whose sum is σ = 5303692800. Its totient is φ = 707156352.

The previous prime is 2136205537. The next prime is 2136205541. The reversal of 2136205540 is 455026312.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 2136205499 and 2136205508.

It is not an unprimeable number, because it can be changed into a prime (2136205541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 259020 + ... + 267139.

It is an arithmetic number, because the mean of its divisors is an integer number (110493600).

Almost surely, 2^2136205540 is an apocalyptic number.

2136205540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2136205540 is an abundant number, since it is smaller than the sum of its proper divisors (3167487260).

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

2136205540 is a wasteful number, since it uses less digits than its factorization.

2136205540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526204 (or 526202 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 2136205540 is about 46219.1036260982. The cubic root of 2136205540 is about 1287.8966464462.

The spelling of 2136205540 in words is "two billion, one hundred thirty-six million, two hundred five thousand, five hundred forty".