1097971459 has 8 divisors (see below), whose sum is σ = 1183360640. Its totient is φ = 1012715136.

The previous prime is 1097971429. The next prime is 1097971471. The reversal of 1097971459 is 9541797901.

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 1097971459 - 2¹⁹ = 1097447171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1097971409) 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, 15699 + ... + 49420.

It is an arithmetic number, because the mean of its divisors is an integer number (147920080).

Almost surely, 2^1097971459 is an apocalyptic number.

1097971459 is a deficient number, since it is larger than the sum of its proper divisors (85389181).

1097971459 is a wasteful number, since it uses less digits than its factorization.

1097971459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66429.

The product of its (nonzero) digits is 714420, while the sum is 52.

The square root of 1097971459 is about 33135.6523853085. The cubic root of 1097971459 is about 1031.6451727068.

The spelling of 1097971459 in words is "one billion, ninety-seven million, nine hundred seventy-one thousand, four hundred fifty-nine".