4015801409 has 2 divisors, whose sum is σ = 4015801410. Its totient is φ = 4015801408.

The previous prime is 4015801397. The next prime is 4015801567. The reversal of 4015801409 is 9041085104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3991080625 + 24720784 = 63175^2 + 4972^2 .

It is a cyclic number.

It is not a de Polignac number, because 4015801409 - 2¹⁶ = 4015735873 is a prime.

It is a super-2 number, since 2×4015801409² = 32253321913052770562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4015806409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2007900704 + 2007900705.

It is an arithmetic number, because the mean of its divisors is an integer number (2007900705).

Almost surely, 2^4015801409 is an apocalyptic number.

It is an amenable number.

4015801409 is a deficient number, since it is larger than the sum of its proper divisors (1).

4015801409 is an equidigital number, since it uses as much as digits as its factorization.

4015801409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 4015801409 is about 63370.3511825522. The cubic root of 4015801409 is about 1589.4885700051.

The spelling of 4015801409 in words is "four billion, fifteen million, eight hundred one thousand, four hundred nine".