1545055871 has 4 divisors (see below), whose sum is σ = 1545134544. Its totient is φ = 1544977200.

The previous prime is 1545055861. The next prime is 1545055909. The reversal of 1545055871 is 1785505451.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1545055871 - 2¹⁴ = 1545039487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1545055801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17411 + ... + 58251.

It is an arithmetic number, because the mean of its divisors is an integer number (386283636).

Almost surely, 2^1545055871 is an apocalyptic number.

1545055871 is a deficient number, since it is larger than the sum of its proper divisors (78673).

1545055871 is an equidigital number, since it uses as much as digits as its factorization.

1545055871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78672.

The product of its (nonzero) digits is 140000, while the sum is 41.

The square root of 1545055871 is about 39307.1987172833. The cubic root of 1545055871 is about 1156.0627190960.

The spelling of 1545055871 in words is "one billion, five hundred forty-five million, fifty-five thousand, eight hundred seventy-one".