1097117609 has 16 divisors (see below), whose sum is σ = 1285435008. Its totient is φ = 916780032.

The previous prime is 1097117603. The next prime is 1097117633. The reversal of 1097117609 is 9067117901.

It is a de Polignac number, because none of the positive numbers 2^k-1097117609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1097117603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170519 + ... + 176835.

It is an arithmetic number, because the mean of its divisors is an integer number (80339688).

Almost surely, 2^1097117609 is an apocalyptic number.

It is an amenable number.

1097117609 is a deficient number, since it is larger than the sum of its proper divisors (188317399).

1097117609 is an equidigital number, since it uses as much as digits as its factorization.

1097117609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6944.

The product of its (nonzero) digits is 23814, while the sum is 41.

The square root of 1097117609 is about 33122.7657208754. The cubic root of 1097117609 is about 1031.3776798190.

The spelling of 1097117609 in words is "one billion, ninety-seven million, one hundred seventeen thousand, six hundred nine".