405073453 has 2 divisors, whose sum is σ = 405073454. Its totient is φ = 405073452.

The previous prime is 405073391. The next prime is 405073463. The reversal of 405073453 is 354370504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 386436964 + 18636489 = 19658^2 + 4317^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-405073453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405073463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202536726 + 202536727.

It is an arithmetic number, because the mean of its divisors is an integer number (202536727).

Almost surely, 2^405073453 is an apocalyptic number.

It is an amenable number.

405073453 is a deficient number, since it is larger than the sum of its proper divisors (1).

405073453 is an equidigital number, since it uses as much as digits as its factorization.

405073453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 31.

The square root of 405073453 is about 20126.4366692169. The cubic root of 405073453 is about 739.9083481572.

The spelling of 405073453 in words is "four hundred five million, seventy-three thousand, four hundred fifty-three".