47072131 has 2 divisors, whose sum is σ = 47072132. Its totient is φ = 47072130.

The previous prime is 47072119. The next prime is 47072149. The reversal of 47072131 is 13127074.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47072131 - 2¹¹ = 47070083 is a prime.

It is a super-2 number, since 2×47072131² = 4431571033762322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47072096 and 47072105.

It is not a weakly prime, because it can be changed into another prime (47072111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23536065 + 23536066.

It is an arithmetic number, because the mean of its divisors is an integer number (23536066).

Almost surely, 2^47072131 is an apocalyptic number.

47072131 is a deficient number, since it is larger than the sum of its proper divisors (1).

47072131 is an equidigital number, since it uses as much as digits as its factorization.

47072131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 47072131 is about 6860.9132773997. The cubic root of 47072131 is about 361.0671294197.

The spelling of 47072131 in words is "forty-seven million, seventy-two thousand, one hundred thirty-one".