2130765 has 48 divisors (see below), whose sum is σ = 4290048. Its totient is φ = 895104.

The previous prime is 2130757. The next prime is 2130767. The reversal of 2130765 is 5670312.

It is not a de Polignac number, because 2130765 - 2³ = 2130757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130767) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9444 + ... + 9666.

It is an arithmetic number, because the mean of its divisors is an integer number (89376).

2^2130765 is an apocalyptic number.

It is an amenable number.

2130765 is an abundant number, since it is smaller than the sum of its proper divisors (2159283).

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

2130765 is a wasteful number, since it uses less digits than its factorization.

2130765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 2130765 is about 1459.7140130861. The cubic root of 2130765 is about 128.6802368153.

The spelling of 2130765 in words is "two million, one hundred thirty thousand, seven hundred sixty-five".