2140529 has 4 divisors (see below), whose sum is σ = 2153076. Its totient is φ = 2127984.

The previous prime is 2140517. The next prime is 2140531. The reversal of 2140529 is 9250412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1575025 + 565504 = 1255^2 + 752^2 .

It is a cyclic number.

It is not a de Polignac number, because 2140529 - 2⁴ = 2140513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2140549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6014 + ... + 6359.

It is an arithmetic number, because the mean of its divisors is an integer number (538269).

2^2140529 is an apocalyptic number.

It is an amenable number.

2140529 is a deficient number, since it is larger than the sum of its proper divisors (12547).

2140529 is a wasteful number, since it uses less digits than its factorization.

2140529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12546.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 2140529 is about 1463.0546811381. The cubic root of 2140529 is about 128.8764917668.

The spelling of 2140529 in words is "two million, one hundred forty thousand, five hundred twenty-nine".