47142031 has 2 divisors, whose sum is σ = 47142032. Its totient is φ = 47142030.

The previous prime is 47142001. The next prime is 47142077. The reversal of 47142031 is 13024174.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47142031 - 2¹³ = 47133839 is a prime.

It is a super-2 number, since 2×47142031² = 4444742173609922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47141993 and 47142011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47142001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23571015 + 23571016.

It is an arithmetic number, because the mean of its divisors is an integer number (23571016).

Almost surely, 2^47142031 is an apocalyptic number.

47142031 is a deficient number, since it is larger than the sum of its proper divisors (1).

47142031 is an equidigital number, since it uses as much as digits as its factorization.

47142031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 47142031 is about 6866.0054616931. The cubic root of 47142031 is about 361.2457638500.

The spelling of 47142031 in words is "forty-seven million, one hundred forty-two thousand, thirty-one".