1641174047 has 2 divisors, whose sum is σ = 1641174048. Its totient is φ = 1641174046.

The previous prime is 1641174019. The next prime is 1641174049. The reversal of 1641174047 is 7404711461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1641174047 - 2¹² = 1641169951 is a prime.

Together with 1641174049, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1641173998 and 1641174016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1641174049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 820587023 + 820587024.

It is an arithmetic number, because the mean of its divisors is an integer number (820587024).

Almost surely, 2^1641174047 is an apocalyptic number.

1641174047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1641174047 is an equidigital number, since it uses as much as digits as its factorization.

1641174047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 1641174047 is about 40511.4063814131. The cubic root of 1641174047 is about 1179.5550479342. Note that the first 3 decimals are identical.

The spelling of 1641174047 in words is "one billion, six hundred forty-one million, one hundred seventy-four thousand, forty-seven".