4152809 has 2 divisors, whose sum is σ = 4152810. Its totient is φ = 4152808.

The previous prime is 4152803. The next prime is 4152823. The reversal of 4152809 is 9082514.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2795584 + 1357225 = 1672^2 + 1165^2 .

It is a cyclic number.

It is not a de Polignac number, because 4152809 - 2¹⁶ = 4087273 is a prime.

It is a super-3 number, since 3×4152809³ (a number of 21 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (4152803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2076404 + 2076405.

It is an arithmetic number, because the mean of its divisors is an integer number (2076405).

Almost surely, 2^4152809 is an apocalyptic number.

It is an amenable number.

4152809 is a deficient number, since it is larger than the sum of its proper divisors (1).

4152809 is an equidigital number, since it uses as much as digits as its factorization.

4152809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 4152809 is about 2037.8442040549. The cubic root of 4152809 is about 160.7363068990.

The spelling of 4152809 in words is "four million, one hundred fifty-two thousand, eight hundred nine".