49912147 has 2 divisors, whose sum is σ = 49912148. Its totient is φ = 49912146.

The previous prime is 49912141. The next prime is 49912157. The reversal of 49912147 is 74121994.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49912147 - 2⁷ = 49912019 is a prime.

It is not a weakly prime, because it can be changed into another prime (49912141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24956073 + 24956074.

It is an arithmetic number, because the mean of its divisors is an integer number (24956074).

Almost surely, 2^49912147 is an apocalyptic number.

49912147 is a deficient number, since it is larger than the sum of its proper divisors (1).

49912147 is an equidigital number, since it uses as much as digits as its factorization.

49912147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 37.

The square root of 49912147 is about 7064.8529354828. The cubic root of 49912147 is about 368.1872545548.

The spelling of 49912147 in words is "forty-nine million, nine hundred twelve thousand, one hundred forty-seven".