436142081 has 2 divisors, whose sum is σ = 436142082. Its totient is φ = 436142080.

The previous prime is 436142071. The next prime is 436142117. The reversal of 436142081 is 180241634.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 436141456 + 625 = 20884^2 + 25^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-436142081 is a prime.

It is a super-2 number, since 2×436142081² = 380439829638021122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (436142011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 218071040 + 218071041.

It is an arithmetic number, because the mean of its divisors is an integer number (218071041).

It is a Proth number, since it is equal to 6655 ⋅ 2¹⁶ + 1 and 6655 < 2¹⁶.

Almost surely, 2^436142081 is an apocalyptic number.

It is an amenable number.

436142081 is a deficient number, since it is larger than the sum of its proper divisors (1).

436142081 is an equidigital number, since it uses as much as digits as its factorization.

436142081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 436142081 is about 20884.0149636031. The cubic root of 436142081 is about 758.3610114708.

The spelling of 436142081 in words is "four hundred thirty-six million, one hundred forty-two thousand, eighty-one".