47142079 has 2 divisors, whose sum is σ = 47142080. Its totient is φ = 47142078.

The previous prime is 47142077. The next prime is 47142113. The reversal of 47142079 is 97024174.

It is an a-pointer prime, because the next prime (47142113) can be obtained adding 47142079 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47142079 - 2¹ = 47142077 is a prime.

It is a super-2 number, since 2×47142079² = 4444751224884482, which contains 22 as substring.

Together with 47142077, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47142077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23571039 + 23571040.

It is an arithmetic number, because the mean of its divisors is an integer number (23571040).

Almost surely, 2^47142079 is an apocalyptic number.

47142079 is a deficient number, since it is larger than the sum of its proper divisors (1).

47142079 is an equidigital number, since it uses as much as digits as its factorization.

47142079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 47142079 is about 6866.0089571745. The cubic root of 47142079 is about 361.2458864568.

The spelling of 47142079 in words is "forty-seven million, one hundred forty-two thousand, seventy-nine".