1055144071 has 4 divisors (see below), whose sum is σ = 1065591144. Its totient is φ = 1044697000.

The previous prime is 1055144063. The next prime is 1055144099. The reversal of 1055144071 is 1704415501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1055144071 - 2³ = 1055144063 is a prime.

It is a super-2 number, since 2×1055144071² = 2226658021132906082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055144171) 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, 5223385 + ... + 5223586.

It is an arithmetic number, because the mean of its divisors is an integer number (266397786).

Almost surely, 2^1055144071 is an apocalyptic number.

1055144071 is a deficient number, since it is larger than the sum of its proper divisors (10447073).

1055144071 is a wasteful number, since it uses less digits than its factorization.

1055144071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10447072.

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 1055144071 is about 32482.9812517263. The cubic root of 1055144071 is about 1018.0534679209.

Adding to 1055144071 its reverse (1704415501), we get a palindrome (2759559572).

The spelling of 1055144071 in words is "one billion, fifty-five million, one hundred forty-four thousand, seventy-one".