355136081 has 2 divisors, whose sum is σ = 355136082. Its totient is φ = 355136080.

The previous prime is 355136029. The next prime is 355136141. The reversal of 355136081 is 180631553.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 317730625 + 37405456 = 17825^2 + 6116^2 .

It is a cyclic number.

It is not a de Polignac number, because 355136081 - 2⁶ = 355136017 is a prime.

It is a super-2 number, since 2×355136081² = 252243272056077122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (355136981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177568040 + 177568041.

It is an arithmetic number, because the mean of its divisors is an integer number (177568041).

Almost surely, 2^355136081 is an apocalyptic number.

It is an amenable number.

355136081 is a deficient number, since it is larger than the sum of its proper divisors (1).

355136081 is an equidigital number, since it uses as much as digits as its factorization.

355136081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 355136081 is about 18845.0545501996. The cubic root of 355136081 is about 708.1603375944.

The spelling of 355136081 in words is "three hundred fifty-five million, one hundred thirty-six thousand, eighty-one".