1696142449 has 2 divisors, whose sum is σ = 1696142450. Its totient is φ = 1696142448.

The previous prime is 1696142333. The next prime is 1696142467. The reversal of 1696142449 is 9442416961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1626670224 + 69472225 = 40332^2 + 8335^2 .

It is a cyclic number.

It is not a de Polignac number, because 1696142449 - 2⁷ = 1696142321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1696142399 and 1696142408.

It is not a weakly prime, because it can be changed into another prime (1696742449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 848071224 + 848071225.

It is an arithmetic number, because the mean of its divisors is an integer number (848071225).

Almost surely, 2^1696142449 is an apocalyptic number.

It is an amenable number.

1696142449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1696142449 is an equidigital number, since it uses as much as digits as its factorization.

1696142449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 46.

The square root of 1696142449 is about 41184.2500113818. The cubic root of 1696142449 is about 1192.5797783972.

The spelling of 1696142449 in words is "one billion, six hundred ninety-six million, one hundred forty-two thousand, four hundred forty-nine".