121166797 has 4 divisors (see below), whose sum is σ = 121214080. Its totient is φ = 121119516.

The previous prime is 121166789. The next prime is 121166809. The reversal of 121166797 is 797661121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 797661121 = 6397 ⋅124693.

It is a cyclic number.

It is not a de Polignac number, because 121166797 - 2³ = 121166789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121166777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19563 + ... + 25000.

It is an arithmetic number, because the mean of its divisors is an integer number (30303520).

Almost surely, 2^121166797 is an apocalyptic number.

It is an amenable number.

121166797 is a deficient number, since it is larger than the sum of its proper divisors (47283).

121166797 is an equidigital number, since it uses as much as digits as its factorization.

121166797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47282.

The product of its digits is 31752, while the sum is 40.

The square root of 121166797 is about 11007.5790708039. The cubic root of 121166797 is about 494.8359106490.

The spelling of 121166797 in words is "one hundred twenty-one million, one hundred sixty-six thousand, seven hundred ninety-seven".