2131470653 has 4 divisors (see below), whose sum is σ = 2295429948. Its totient is φ = 1967511360.

The previous prime is 2131470643. The next prime is 2131470683. The reversal of 2131470653 is 3560741312.

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 835614649 + 1295856004 = 28907^2 + 35998^2 .

It is a cyclic number.

It is not a de Polignac number, because 2131470653 - 2⁶ = 2131470589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131470643) 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 3 ways as a sum of consecutive naturals, for example, 81979628 + ... + 81979653.

It is an arithmetic number, because the mean of its divisors is an integer number (573857487).

Almost surely, 2^2131470653 is an apocalyptic number.

It is an amenable number.

2131470653 is a deficient number, since it is larger than the sum of its proper divisors (163959295).

2131470653 is a wasteful number, since it uses less digits than its factorization.

2131470653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163959294.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 2131470653 is about 46167.8530256714. The cubic root of 2131470653 is about 1286.9444041085.

The spelling of 2131470653 in words is "two billion, one hundred thirty-one million, four hundred seventy thousand, six hundred fifty-three".