104217271929 has 9 divisors (see below), whose sum is σ = 150537458383. Its totient is φ = 69477535632.

The previous prime is 104217271927. The next prime is 104217271967. The reversal of 104217271929 is 929172712401.

It is a happy number.

The square root of 104217271929 is 322827.

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

104217271929 is a `hidden beast` number, since 1 + 0 + 421 + 72 + 71 + 92 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 104120446329 + 96825600 = 322677^2 + 9840^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 104217271929 - 2¹ = 104217271927 is a prime.

It is a super-2 number, since 2×104217271929² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104217271927) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 914677 + ... + 1022285.

Almost surely, 2^104217271929 is an apocalyptic number.

104217271929 is the 322827-th square number.

104217271929 is the 161414-th centered octagonal number.

It is an amenable number.

104217271929 is a deficient number, since it is larger than the sum of its proper divisors (46320186454).

104217271929 is an frugal number, since it uses more digits than its factorization.

104217271929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215224 (or 107612 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The spelling of 104217271929 in words is "one hundred four billion, two hundred seventeen million, two hundred seventy-one thousand, nine hundred twenty-nine".