47143081 has 2 divisors, whose sum is σ = 47143082. Its totient is φ = 47143080.

The previous prime is 47143049. The next prime is 47143099. The reversal of 47143081 is 18034174.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41165056 + 5978025 = 6416^2 + 2445^2 .

It is a cyclic number.

It is not a de Polignac number, because 47143081 - 2⁵ = 47143049 is a prime.

It is a super-2 number, since 2×47143081² = 4444940172345122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47143001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23571540 + 23571541.

It is an arithmetic number, because the mean of its divisors is an integer number (23571541).

Almost surely, 2^47143081 is an apocalyptic number.

It is an amenable number.

47143081 is a deficient number, since it is larger than the sum of its proper divisors (1).

47143081 is an equidigital number, since it uses as much as digits as its factorization.

47143081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 47143081 is about 6866.0819249409. The cubic root of 47143081 is about 361.2484458532.

The spelling of 47143081 in words is "forty-seven million, one hundred forty-three thousand, eighty-one".