1550109047 has 2 divisors, whose sum is σ = 1550109048. Its totient is φ = 1550109046.

The previous prime is 1550109019. The next prime is 1550109049. The reversal of 1550109047 is 7409010551.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1550109047 - 2¹⁶ = 1550043511 is a prime.

Together with 1550109049, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1550109049) 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, 775054523 + 775054524.

It is an arithmetic number, because the mean of its divisors is an integer number (775054524).

Almost surely, 2^1550109047 is an apocalyptic number.

1550109047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1550109047 is an equidigital number, since it uses as much as digits as its factorization.

1550109047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 32.

The square root of 1550109047 is about 39371.4242439869. The cubic root of 1550109047 is about 1157.3216663031.

Adding to 1550109047 its reverse (7409010551), we get a palindrome (8959119598).

The spelling of 1550109047 in words is "one billion, five hundred fifty million, one hundred nine thousand, forty-seven".