109107961 has 2 divisors, whose sum is σ = 109107962. Its totient is φ = 109107960.

The previous prime is 109107949. The next prime is 109107979. The reversal of 109107961 is 169701901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91087936 + 18020025 = 9544^2 + 4245^2 .

It is a cyclic number.

It is not a de Polignac number, because 109107961 - 2¹⁵ = 109075193 is a prime.

It is equal to p_6254971 and since 109107961 and 6254971 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 (109107991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54553980 + 54553981.

It is an arithmetic number, because the mean of its divisors is an integer number (54553981).

Almost surely, 2^109107961 is an apocalyptic number.

It is an amenable number.

109107961 is a deficient number, since it is larger than the sum of its proper divisors (1).

109107961 is an equidigital number, since it uses as much as digits as its factorization.

109107961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402, while the sum is 34.

The square root of 109107961 is about 10445.4756234458. The cubic root of 109107961 is about 477.8432768184.

The spelling of 109107961 in words is "one hundred nine million, one hundred seven thousand, nine hundred sixty-one".