2146840653 has 8 divisors (see below), whose sum is σ = 2864406016. Its totient is φ = 1430251200.

The previous prime is 2146840651. The next prime is 2146840669. The reversal of 2146840653 is 3560486412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2146840653 - 2¹ = 2146840651 is a prime.

It is a super-3 number, since 3×2146840653³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2146840651) 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 7 ways as a sum of consecutive naturals, for example, 238828 + ... + 247653.

It is an arithmetic number, because the mean of its divisors is an integer number (358050752).

Almost surely, 2^2146840653 is an apocalyptic number.

It is an amenable number.

2146840653 is a deficient number, since it is larger than the sum of its proper divisors (717565363).

2146840653 is a wasteful number, since it uses less digits than its factorization.

2146840653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487955.

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 2146840653 is about 46334.0118379577. The cubic root of 2146840653 is about 1290.0303766659.

The spelling of 2146840653 in words is "two billion, one hundred forty-six million, eight hundred forty thousand, six hundred fifty-three".