97654534121 has 16 divisors (see below), whose sum is σ = 101285677584. Its totient is φ = 94077333504.

The previous prime is 97654534093. The next prime is 97654534151. The reversal of 97654534121 is 12143545679.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 3196658521 + 94457875600 = 56539^2 + 307340^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97654534121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97654534151) 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, 4223825 + ... + 4246881.

It is an arithmetic number, because the mean of its divisors is an integer number (6330354849).

Almost surely, 2^97654534121 is an apocalyptic number.

It is an amenable number.

97654534121 is a deficient number, since it is larger than the sum of its proper divisors (3631143463).

97654534121 is a wasteful number, since it uses less digits than its factorization.

97654534121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24220.

The product of its digits is 907200, while the sum is 47.

The spelling of 97654534121 in words is "ninety-seven billion, six hundred fifty-four million, five hundred thirty-four thousand, one hundred twenty-one".