1171028053 has 6 divisors (see below), whose sum is σ = 1261240022. Its totient is φ = 1080835080.

The previous prime is 1171028039. The next prime is 1171028071. The reversal of 1171028053 is 3508201711.

It can be written as a sum of positive squares in only one way, i.e., 810711729 + 360316324 = 28473^2 + 18982^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1171028053 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 (1171028953) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 118638 + ... + 128128.

Almost surely, 2^1171028053 is an apocalyptic number.

1171028053 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1171028053 is a deficient number, since it is larger than the sum of its proper divisors (90211969).

1171028053 is an frugal number, since it uses more digits than its factorization.

1171028053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18995 (or 9504 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 1171028053 is about 34220.2871554287. The cubic root of 1171028053 is about 1054.0367818755.

Adding to 1171028053 its reverse (3508201711), we get a palindrome (4679229764).

The spelling of 1171028053 in words is "one billion, one hundred seventy-one million, twenty-eight thousand, fifty-three".