1814578049 has 2 divisors, whose sum is σ = 1814578050. Its totient is φ = 1814578048.

The previous prime is 1814578037. The next prime is 1814578061. The reversal of 1814578049 is 9408754181.

It is a balanced prime because it is at equal distance from previous prime (1814578037) and next prime (1814578061).

It can be written as a sum of positive squares in only one way, i.e., 1279349824 + 535228225 = 35768^2 + 23135^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1814578049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1814577994 and 1814578012.

It is not a weakly prime, because it can be changed into another prime (1814578849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 907289024 + 907289025.

It is an arithmetic number, because the mean of its divisors is an integer number (907289025).

Almost surely, 2^1814578049 is an apocalyptic number.

It is an amenable number.

1814578049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1814578049 is an equidigital number, since it uses as much as digits as its factorization.

1814578049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 322560, while the sum is 47.

The square root of 1814578049 is about 42597.8643713508. The cubic root of 1814578049 is about 1219.7155228947.

The spelling of 1814578049 in words is "one billion, eight hundred fourteen million, five hundred seventy-eight thousand, forty-nine".