2065131700 has 18 divisors (see below), whose sum is σ = 4481336006. Its totient is φ = 826052640.

The previous prime is 2065131647. The next prime is 2065131707. The reversal of 2065131700 is 71315602.

It can be written as a sum of positive squares in 3 ways, for example, as 143712144 + 1921419556 = 11988^2 + 43834^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2065131707) 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 5 ways as a sum of consecutive naturals, for example, 10325559 + ... + 10325758.

Almost surely, 2^2065131700 is an apocalyptic number.

2065131700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2065131700 is an abundant number, since it is smaller than the sum of its proper divisors (2416204306).

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

2065131700 is a wasteful number, since it uses less digits than its factorization.

2065131700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20651331 (or 20651324 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 2065131700 is about 45443.7201382105. The cubic root of 2065131700 is about 1273.4520134319.

The spelling of 2065131700 in words is "two billion, sixty-five million, one hundred thirty-one thousand, seven hundred".