1351633144657 has 2 divisors, whose sum is σ = 1351633144658. Its totient is φ = 1351633144656.

The previous prime is 1351633144651. The next prime is 1351633144681. The reversal of 1351633144657 is 7564413361531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1172886834001 + 178746310656 = 1082999^2 + 422784^2 .

It is a cyclic number.

It is not a de Polignac number, because 1351633144657 - 2¹⁹ = 1351632620369 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1351633144657.

It is not a weakly prime, because it can be changed into another prime (1351633144651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 675816572328 + 675816572329.

It is an arithmetic number, because the mean of its divisors is an integer number (675816572329).

Almost surely, 2^{1351633144657} is an apocalyptic number.

It is an amenable number.

1351633144657 is a deficient number, since it is larger than the sum of its proper divisors (1).

1351633144657 is an equidigital number, since it uses as much as digits as its factorization.

1351633144657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2721600, while the sum is 49.

The spelling of 1351633144657 in words is "one trillion, three hundred fifty-one billion, six hundred thirty-three million, one hundred forty-four thousand, six hundred fifty-seven".