1654081349 has 2 divisors, whose sum is σ = 1654081350. Its totient is φ = 1654081348.

The previous prime is 1654081339. The next prime is 1654081357. The reversal of 1654081349 is 9431804561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1648928449 + 5152900 = 40607^2 + 2270^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1654081349 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1654081339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 827040674 + 827040675.

It is an arithmetic number, because the mean of its divisors is an integer number (827040675).

Almost surely, 2^1654081349 is an apocalyptic number.

It is an amenable number.

1654081349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1654081349 is an equidigital number, since it uses as much as digits as its factorization.

1654081349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 1654081349 is about 40670.3989284590. The cubic root of 1654081349 is about 1182.6392493204.

The spelling of 1654081349 in words is "one billion, six hundred fifty-four million, eighty-one thousand, three hundred forty-nine".