1271065054 has 16 divisors (see below), whose sum is σ = 2273707008. Its totient is φ = 521057592.

The previous prime is 1271065001. The next prime is 1271065057. The reversal of 1271065054 is 4505601721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1271065057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1973382 + ... + 1974025.

It is an arithmetic number, because the mean of its divisors is an integer number (142106688).

Almost surely, 2^1271065054 is an apocalyptic number.

1271065054 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1271065054 is a deficient number, since it is larger than the sum of its proper divisors (1002641954).

1271065054 is a wasteful number, since it uses less digits than its factorization.

1271065054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3947439.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 1271065054 is about 35651.9992987771. Note that the first 3 decimals coincide. The cubic root of 1271065054 is about 1083.2347729716.

Adding to 1271065054 its reverse (4505601721), we get a palindrome (5776666775).

The spelling of 1271065054 in words is "one billion, two hundred seventy-one million, sixty-five thousand, fifty-four".