1545361663 has 2 divisors, whose sum is σ = 1545361664. Its totient is φ = 1545361662.

The previous prime is 1545361621. The next prime is 1545361667. The reversal of 1545361663 is 3661635451.

It is a strong prime.

It is an emirp because it is prime and its reverse (3661635451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1545361663 - 2⁹ = 1545361151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1545361667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 772680831 + 772680832.

It is an arithmetic number, because the mean of its divisors is an integer number (772680832).

Almost surely, 2^1545361663 is an apocalyptic number.

1545361663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1545361663 is an equidigital number, since it uses as much as digits as its factorization.

1545361663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 40.

The square root of 1545361663 is about 39311.0882957977. The cubic root of 1545361663 is about 1156.1389820149.

The spelling of 1545361663 in words is "one billion, five hundred forty-five million, three hundred sixty-one thousand, six hundred sixty-three".