292398666121 has 9 divisors (see below), whose sum is σ = 294623186599. Its totient is φ = 290190828784.

The previous prime is 292398666113. The next prime is 292398666137. The reversal of 292398666121 is 121666893292.

The square root of 292398666121 is 540739.

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

It can be written as a sum of positive squares in only one way, i.e., 171756369225 + 120642296896 = 414435^2 + 347336^2 .

It is not a de Polignac number, because 292398666121 - 2³ = 292398666113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (292398606121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 74079270 + ... + 74083216.

Almost surely, 2^292398666121 is an apocalyptic number.

292398666121 is the 540739-th square number.

292398666121 is the 270370-th centered octagonal number.

It is an amenable number.

292398666121 is a deficient number, since it is larger than the sum of its proper divisors (2224520478).

292398666121 is an frugal number, since it uses more digits than its factorization.

292398666121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8168 (or 4084 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 55.

The spelling of 292398666121 in words is "two hundred ninety-two billion, three hundred ninety-eight million, six hundred sixty-six thousand, one hundred twenty-one".