1115271 has 12 divisors (see below), whose sum is σ = 1631448. Its totient is φ = 734064.

The previous prime is 1115269. The next prime is 1115273. The reversal of 1115271 is 1725111.

It is a happy number.

1115271 is a nontrivial binomial coefficient, being equal to C(1494, 2).

It is an interprime number because it is at equal distance from previous prime (1115269) and next prime (1115273).

It is not a de Polignac number, because 1115271 - 2¹ = 1115269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1 + ... + 1493.

It is an arithmetic number, because the mean of its divisors is an integer number (135954).

2^1115271 is an apocalyptic number.

1115271 is the 1493-rd triangular number and also the 747-th hexagonal number.

1115271 is a deficient number, since it is larger than the sum of its proper divisors (516177).

1115271 is a wasteful number, since it uses less digits than its factorization.

1115271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582 (or 1579 counting only the distinct ones).

The product of its digits is 70, while the sum is 18.

The square root of 1115271 is about 1056.0639185201. The cubic root of 1115271 is about 103.7035133106.

The spelling of 1115271 in words is "one million, one hundred fifteen thousand, two hundred seventy-one".