110100409 has 2 divisors, whose sum is σ = 110100410. Its totient is φ = 110100408.

The previous prime is 110100401. The next prime is 110100509. The reversal of 110100409 is 904001011.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108743184 + 1357225 = 10428^2 + 1165^2 .

It is a cyclic number.

It is not a de Polignac number, because 110100409 - 2³ = 110100401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 110100392 and 110100401.

It is not a weakly prime, because it can be changed into another prime (110100401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55050204 + 55050205.

It is an arithmetic number, because the mean of its divisors is an integer number (55050205).

Almost surely, 2^110100409 is an apocalyptic number.

It is an amenable number.

110100409 is a deficient number, since it is larger than the sum of its proper divisors (1).

110100409 is an equidigital number, since it uses as much as digits as its factorization.

110100409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 110100409 is about 10492.8742010948. The cubic root of 110100409 is about 479.2877297566.

The spelling of 110100409 in words is "one hundred ten million, one hundred thousand, four hundred nine".