1097272871 has 8 divisors (see below), whose sum is σ = 1164137184. Its totient is φ = 1030666240.

The previous prime is 1097272859. The next prime is 1097272877. The reversal of 1097272871 is 1782727901.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1097272871 - 2¹⁴ = 1097256487 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 (1097272877) 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, 55610 + ... + 72711.

It is an arithmetic number, because the mean of its divisors is an integer number (145517148).

Almost surely, 2^1097272871 is an apocalyptic number.

1097272871 is a deficient number, since it is larger than the sum of its proper divisors (66864313).

1097272871 is a wasteful number, since it uses less digits than its factorization.

1097272871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128841.

The product of its (nonzero) digits is 98784, while the sum is 44.

The square root of 1097272871 is about 33125.1093734043. The cubic root of 1097272871 is about 1031.4263303941.

The spelling of 1097272871 in words is "one billion, ninety-seven million, two hundred seventy-two thousand, eight hundred seventy-one".