461992121 has 2 divisors, whose sum is σ = 461992122. Its totient is φ = 461992120.

The previous prime is 461992117. The next prime is 461992133. The reversal of 461992121 is 121299164.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 369062521 + 92929600 = 19211^2 + 9640^2 .

It is a cyclic number.

It is not a de Polignac number, because 461992121 - 2² = 461992117 is a prime.

It is a Chen prime.

It is equal to p_24454358 and since 461992121 and 24454358 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (461992151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230996060 + 230996061.

It is an arithmetic number, because the mean of its divisors is an integer number (230996061).

Almost surely, 2^461992121 is an apocalyptic number.

It is an amenable number.

461992121 is a deficient number, since it is larger than the sum of its proper divisors (1).

461992121 is an equidigital number, since it uses as much as digits as its factorization.

461992121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 35.

The square root of 461992121 is about 21494.0019772959. The cubic root of 461992121 is about 773.0570106012.

The spelling of 461992121 in words is "four hundred sixty-one million, nine hundred ninety-two thousand, one hundred twenty-one".