2061250136 has 64 divisors (see below), whose sum is σ = 4548610080. Its totient is φ = 865146880.

The previous prime is 2061250129. The next prime is 2061250141. The reversal of 2061250136 is 6310521602.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 66290 + ... + 92286.

Almost surely, 2^2061250136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2061250136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2274305040).

2061250136 is an abundant number, since it is smaller than the sum of its proper divisors (2487359944).

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

2061250136 is a wasteful number, since it uses less digits than its factorization.

2061250136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26084 (or 26080 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 2061250136 is about 45400.9926763722. The cubic root of 2061250136 is about 1272.6536647312.

Adding to 2061250136 its reverse (6310521602), we get a palindrome (8371771738).

The spelling of 2061250136 in words is "two billion, sixty-one million, two hundred fifty thousand, one hundred thirty-six".