181406341 has 2 divisors, whose sum is σ = 181406342. Its totient is φ = 181406340.

The previous prime is 181406321. The next prime is 181406363. The reversal of 181406341 is 143604181.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112996900 + 68409441 = 10630^2 + 8271^2 .

It is a cyclic number.

It is not a de Polignac number, because 181406341 - 2¹⁵ = 181373573 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (181406321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90703170 + 90703171.

It is an arithmetic number, because the mean of its divisors is an integer number (90703171).

Almost surely, 2^181406341 is an apocalyptic number.

It is an amenable number.

181406341 is a deficient number, since it is larger than the sum of its proper divisors (1).

181406341 is an equidigital number, since it uses as much as digits as its factorization.

181406341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 181406341 is about 13468.7171252499. The cubic root of 181406341 is about 566.0882682284.

The spelling of 181406341 in words is "one hundred eighty-one million, four hundred six thousand, three hundred forty-one".