109776461 has 2 divisors, whose sum is σ = 109776462. Its totient is φ = 109776460.

The previous prime is 109776439. The next prime is 109776467. The reversal of 109776461 is 164677901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102131236 + 7645225 = 10106^2 + 2765^2 .

It is an emirp because it is prime and its reverse (164677901) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109776461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109776467) 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 as a sum of consecutive naturals, namely, 54888230 + 54888231.

It is an arithmetic number, because the mean of its divisors is an integer number (54888231).

Almost surely, 2^109776461 is an apocalyptic number.

It is an amenable number.

109776461 is a deficient number, since it is larger than the sum of its proper divisors (1).

109776461 is an equidigital number, since it uses as much as digits as its factorization.

109776461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 109776461 is about 10477.4262583900. The cubic root of 109776461 is about 478.8171991741.

The spelling of 109776461 in words is "one hundred nine million, seven hundred seventy-six thousand, four hundred sixty-one".