1573040453 has 2 divisors, whose sum is σ = 1573040454. Its totient is φ = 1573040452.

The previous prime is 1573040437. The next prime is 1573040461. The reversal of 1573040453 is 3540403751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1456032964 + 117007489 = 38158^2 + 10817^2 .

It is a cyclic number.

It is not a de Polignac number, because 1573040453 - 2⁴ = 1573040437 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 (1573040473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 786520226 + 786520227.

It is an arithmetic number, because the mean of its divisors is an integer number (786520227).

Almost surely, 2^1573040453 is an apocalyptic number.

It is an amenable number.

1573040453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1573040453 is an equidigital number, since it uses as much as digits as its factorization.

1573040453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 1573040453 is about 39661.5740106214. The cubic root of 1573040453 is about 1163.0006668787. Note that the first 3 decimals are identical.

The spelling of 1573040453 in words is "one billion, five hundred seventy-three million, forty thousand, four hundred fifty-three".