1545045871 has 2 divisors, whose sum is σ = 1545045872. Its totient is φ = 1545045870.

The previous prime is 1545045863. The next prime is 1545045883. The reversal of 1545045871 is 1785405451.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1545045871 - 2³ = 1545045863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1545045841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 772522935 + 772522936.

It is an arithmetic number, because the mean of its divisors is an integer number (772522936).

Almost surely, 2^1545045871 is an apocalyptic number.

1545045871 is a deficient number, since it is larger than the sum of its proper divisors (1).

1545045871 is an equidigital number, since it uses as much as digits as its factorization.

1545045871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112000, while the sum is 40.

The square root of 1545045871 is about 39307.0715139146. The cubic root of 1545045871 is about 1156.0602249786.

The spelling of 1545045871 in words is "one billion, five hundred forty-five million, forty-five thousand, eight hundred seventy-one".