412506109 has 2 divisors, whose sum is σ = 412506110. Its totient is φ = 412506108.

The previous prime is 412506097. The next prime is 412506151. The reversal of 412506109 is 901605214.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 225090009 + 187416100 = 15003^2 + 13690^2 .

It is a cyclic number.

It is not a de Polignac number, because 412506109 - 2¹⁷ = 412375037 is a prime.

It is a super-2 number, since 2×412506109² = 340322579924639762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (412506209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206253054 + 206253055.

It is an arithmetic number, because the mean of its divisors is an integer number (206253055).

Almost surely, 2^412506109 is an apocalyptic number.

It is an amenable number.

412506109 is a deficient number, since it is larger than the sum of its proper divisors (1).

412506109 is an equidigital number, since it uses as much as digits as its factorization.

412506109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 412506109 is about 20310.2464042168. The cubic root of 412506109 is about 744.4064512520.

It can be divided in two parts, 412 and 506109, that added together give a triangular number (506521 = T₁₀₀₆).

The spelling of 412506109 in words is "four hundred twelve million, five hundred six thousand, one hundred nine".