2072131613 has 4 divisors (see below), whose sum is σ = 2074936320. Its totient is φ = 2069326908.

The previous prime is 2072131573. The next prime is 2072131639. The reversal of 2072131613 is 3161312702.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2072131613 - 2⁶ = 2072131549 is a prime.

It is a super-4 number, since 4×2072131613⁴ (a number of 38 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2072131643) 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, 1401245 + ... + 1402722.

It is an arithmetic number, because the mean of its divisors is an integer number (518734080).

Almost surely, 2^2072131613 is an apocalyptic number.

It is an amenable number.

2072131613 is a deficient number, since it is larger than the sum of its proper divisors (2804707).

2072131613 is an equidigital number, since it uses as much as digits as its factorization.

2072131613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2804706.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 2072131613 is about 45520.6723698146. The cubic root of 2072131613 is about 1274.8892100068.

The spelling of 2072131613 in words is "two billion, seventy-two million, one hundred thirty-one thousand, six hundred thirteen".