103997865169 has 27 divisors (see below), whose sum is σ = 120723000489. Its totient is φ = 89509491720.

The previous prime is 103997865157. The next prime is 103997865197. The reversal of 103997865169 is 961568799301.

It is a happy number.

The square root of 103997865169 is 322487.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 103997865169 - 2¹¹ = 103997863121 is a prime.

It is a super-2 number, since 2×103997865169² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 103997865169.

It is not an unprimeable number, because it can be changed into a prime (103997865119) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 67399012 + ... + 67400554.

Almost surely, 2^103997865169 is an apocalyptic number.

103997865169 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

103997865169 is the 322487-th square number.

103997865169 is the 161244-th centered octagonal number.

It is an amenable number.

103997865169 is a deficient number, since it is larger than the sum of its proper divisors (16725135320).

103997865169 is an frugal number, since it uses more digits than its factorization.

103997865169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3146 (or 1573 counting only the distinct ones).

The product of its (nonzero) digits is 22044960, while the sum is 64.

Multiplying 103997865169 by its sum of digits (64), we get a square (6655863370816 = 2579896²).

The spelling of 103997865169 in words is "one hundred three billion, nine hundred ninety-seven million, eight hundred sixty-five thousand, one hundred sixty-nine".