1545130553 has 2 divisors, whose sum is σ = 1545130554. Its totient is φ = 1545130552.

The previous prime is 1545130541. The next prime is 1545130577. The reversal of 1545130553 is 3550315451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1485948304 + 59182249 = 38548^2 + 7693^2 .

It is a cyclic number.

It is not a de Polignac number, because 1545130553 - 2⁴ = 1545130537 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1545130583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 772565276 + 772565277.

It is an arithmetic number, because the mean of its divisors is an integer number (772565277).

Almost surely, 2^1545130553 is an apocalyptic number.

It is an amenable number.

1545130553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1545130553 is an equidigital number, since it uses as much as digits as its factorization.

1545130553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22500, while the sum is 32.

The square root of 1545130553 is about 39308.1486844649. The cubic root of 1545130553 is about 1156.0813453232.

The spelling of 1545130553 in words is "one billion, five hundred forty-five million, one hundred thirty thousand, five hundred fifty-three".