340065181 has 2 divisors, whose sum is σ = 340065182. Its totient is φ = 340065180.

The previous prime is 340065169. The next prime is 340065239. The reversal of 340065181 is 181560043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 292923225 + 47141956 = 17115^2 + 6866^2 .

It is a cyclic number.

It is not a de Polignac number, because 340065181 - 2⁷ = 340065053 is a prime.

It is a super-2 number, since 2×340065181² = 231288654657125522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340065151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170032590 + 170032591.

It is an arithmetic number, because the mean of its divisors is an integer number (170032591).

Almost surely, 2^340065181 is an apocalyptic number.

It is an amenable number.

340065181 is a deficient number, since it is larger than the sum of its proper divisors (1).

340065181 is an equidigital number, since it uses as much as digits as its factorization.

340065181 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 28.

The square root of 340065181 is about 18440.8562979055. The cubic root of 340065181 is about 697.9978031036.

The spelling of 340065181 in words is "three hundred forty million, sixty-five thousand, one hundred eighty-one".