47931151 has 2 divisors, whose sum is σ = 47931152. Its totient is φ = 47931150.

The previous prime is 47931137. The next prime is 47931157. The reversal of 47931151 is 15113974.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47931151 - 2¹⁷ = 47800079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47931157) 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, 23965575 + 23965576.

It is an arithmetic number, because the mean of its divisors is an integer number (23965576).

Almost surely, 2^47931151 is an apocalyptic number.

47931151 is a deficient number, since it is larger than the sum of its proper divisors (1).

47931151 is an equidigital number, since it uses as much as digits as its factorization.

47931151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3780, while the sum is 31.

The square root of 47931151 is about 6923.2326986748. The cubic root of 47931151 is about 363.2502757896.

The spelling of 47931151 in words is "forty-seven million, nine hundred thirty-one thousand, one hundred fifty-one".