47142077 has 2 divisors, whose sum is σ = 47142078. Its totient is φ = 47142076.

The previous prime is 47142031. The next prime is 47142079. The reversal of 47142077 is 77024174.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47141956 + 121 = 6866^2 + 11^2 .

It is a cyclic number.

It is not a de Polignac number, because 47142077 - 2⁸ = 47141821 is a prime.

Together with 47142079, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47142079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23571038 + 23571039.

It is an arithmetic number, because the mean of its divisors is an integer number (23571039).

Almost surely, 2^47142077 is an apocalyptic number.

It is an amenable number.

47142077 is a deficient number, since it is larger than the sum of its proper divisors (1).

47142077 is an equidigital number, since it uses as much as digits as its factorization.

47142077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10976, while the sum is 32.

The square root of 47142077 is about 6866.0088115294. The cubic root of 47142077 is about 361.2458813481.

The spelling of 47142077 in words is "forty-seven million, one hundred forty-two thousand, seventy-seven".