340102181 has 2 divisors, whose sum is σ = 340102182. Its totient is φ = 340102180.

The previous prime is 340102177. The next prime is 340102183. The reversal of 340102181 is 181201043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 271129156 + 68973025 = 16466^2 + 8305^2 .

It is a cyclic number.

It is not a de Polignac number, because 340102181 - 2² = 340102177 is a prime.

It is a super-4 number, since 4×340102181⁴ (a number of 35 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

Together with 340102183, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340102183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170051090 + 170051091.

It is an arithmetic number, because the mean of its divisors is an integer number (170051091).

Almost surely, 2^340102181 is an apocalyptic number.

It is an amenable number.

340102181 is a deficient number, since it is larger than the sum of its proper divisors (1).

340102181 is an equidigital number, since it uses as much as digits as its factorization.

340102181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 340102181 is about 18441.8594778292. The cubic root of 340102181 is about 698.0231168607.

The spelling of 340102181 in words is "three hundred forty million, one hundred two thousand, one hundred eighty-one".