1097271 has 12 divisors (see below), whose sum is σ = 1811472. Its totient is φ = 626976.

The previous prime is 1097267. The next prime is 1097293. The reversal of 1097271 is 1727901.

It is not a de Polignac number, because 1097271 - 2² = 1097267 is a prime.

It is an Ulam number.

1097271 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1097221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8646 + ... + 8771.

It is an arithmetic number, because the mean of its divisors is an integer number (150956).

2^1097271 is an apocalyptic number.

1097271 is a deficient number, since it is larger than the sum of its proper divisors (714201).

1097271 is a wasteful number, since it uses less digits than its factorization.

1097271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17430 (or 17427 counting only the distinct ones).

The product of its (nonzero) digits is 882, while the sum is 27.

The square root of 1097271 is about 1047.5070405491. The cubic root of 1097271 is about 103.1425744153.

The spelling of 1097271 in words is "one million, ninety-seven thousand, two hundred seventy-one".