54974147 has 2 divisors, whose sum is σ = 54974148. Its totient is φ = 54974146.

The previous prime is 54974123. The next prime is 54974149. The reversal of 54974147 is 74147945.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54974147 - 2¹⁰ = 54973123 is a prime.

Together with 54974149, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54974149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27487073 + 27487074.

It is an arithmetic number, because the mean of its divisors is an integer number (27487074).

Almost surely, 2^54974147 is an apocalyptic number.

54974147 is a deficient number, since it is larger than the sum of its proper divisors (1).

54974147 is an equidigital number, since it uses as much as digits as its factorization.

54974147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 41.

The square root of 54974147 is about 7414.4552733158. The cubic root of 54974147 is about 380.2356502344.

The spelling of 54974147 in words is "fifty-four million, nine hundred seventy-four thousand, one hundred forty-seven".