47142113 has 2 divisors, whose sum is σ = 47142114. Its totient is φ = 47142112.

The previous prime is 47142079. The next prime is 47142127. The reversal of 47142113 is 31124174.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46895104 + 247009 = 6848^2 + 497^2 .

It is a cyclic number.

It is not a de Polignac number, because 47142113 - 2¹⁶ = 47076577 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47142133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23571056 + 23571057.

It is an arithmetic number, because the mean of its divisors is an integer number (23571057).

Almost surely, 2^47142113 is an apocalyptic number.

It is an amenable number.

47142113 is a deficient number, since it is larger than the sum of its proper divisors (1).

47142113 is an equidigital number, since it uses as much as digits as its factorization.

47142113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 672, while the sum is 23.

The square root of 47142113 is about 6866.0114331393. The cubic root of 47142113 is about 361.2459733031.

Adding to 47142113 its reverse (31124174), we get a palindrome (78266287).

The spelling of 47142113 in words is "forty-seven million, one hundred forty-two thousand, one hundred thirteen".