1405273453453 has 2 divisors, whose sum is σ = 1405273453454. Its totient is φ = 1405273453452.

The previous prime is 1405273453403. The next prime is 1405273453487. The reversal of 1405273453453 is 3543543725041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1387679288004 + 17594165449 = 1177998^2 + 132643^2 .

It is an emirp because it is prime and its reverse (3543543725041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1405273453453 - 2³³ = 1396683518861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1405273453403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702636726726 + 702636726727.

It is an arithmetic number, because the mean of its divisors is an integer number (702636726727).

Almost surely, 2^{1405273453453} is an apocalyptic number.

It is an amenable number.

1405273453453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1405273453453 is an equidigital number, since it uses as much as digits as its factorization.

1405273453453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024000, while the sum is 46.

The spelling of 1405273453453 in words is "one trillion, four hundred five billion, two hundred seventy-three million, four hundred fifty-three thousand, four hundred fifty-three".