1530140453 has 2 divisors, whose sum is σ = 1530140454. Its totient is φ = 1530140452.

The previous prime is 1530140449. The next prime is 1530140473. The reversal of 1530140453 is 3540410351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 814417444 + 715723009 = 28538^2 + 26753^2 .

It is a cyclic number.

It is not a de Polignac number, because 1530140453 - 2² = 1530140449 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1530140473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 765070226 + 765070227.

It is an arithmetic number, because the mean of its divisors is an integer number (765070227).

Almost surely, 2^1530140453 is an apocalyptic number.

It is an amenable number.

1530140453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1530140453 is an equidigital number, since it uses as much as digits as its factorization.

1530140453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1530140453 is about 39117.0097655739. The cubic root of 1530140453 is about 1152.3306114189.

The spelling of 1530140453 in words is "one billion, five hundred thirty million, one hundred forty thousand, four hundred fifty-three".