47973131 has 2 divisors, whose sum is σ = 47973132. Its totient is φ = 47973130.

The previous prime is 47973113. The next prime is 47973143. The reversal of 47973131 is 13137974.

Together with previous prime (47973113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47973131 - 2¹⁴ = 47956747 is a prime.

It is a super-2 number, since 2×47973131² = 4602842595886322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47973091 and 47973100.

It is not a weakly prime, because it can be changed into another prime (47973161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23986565 + 23986566.

It is an arithmetic number, because the mean of its divisors is an integer number (23986566).

Almost surely, 2^47973131 is an apocalyptic number.

47973131 is a deficient number, since it is larger than the sum of its proper divisors (1).

47973131 is an equidigital number, since it uses as much as digits as its factorization.

47973131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15876, while the sum is 35.

The square root of 47973131 is about 6926.2638557883. The cubic root of 47973131 is about 363.3562945023.

The spelling of 47973131 in words is "forty-seven million, nine hundred seventy-three thousand, one hundred thirty-one".