107811409 has 2 divisors, whose sum is σ = 107811410. Its totient is φ = 107811408.

The previous prime is 107811391. The next prime is 107811421. The reversal of 107811409 is 904118701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65561409 + 42250000 = 8097^2 + 6500^2 .

It is a cyclic number.

It is not a de Polignac number, because 107811409 - 2¹⁹ = 107287121 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (107811469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53905704 + 53905705.

It is an arithmetic number, because the mean of its divisors is an integer number (53905705).

Almost surely, 2^107811409 is an apocalyptic number.

It is an amenable number.

107811409 is a deficient number, since it is larger than the sum of its proper divisors (1).

107811409 is an equidigital number, since it uses as much as digits as its factorization.

107811409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 31.

The square root of 107811409 is about 10383.2272921284. The cubic root of 107811409 is about 475.9429600577.

The spelling of 107811409 in words is "one hundred seven million, eight hundred eleven thousand, four hundred nine".