540349 has 2 divisors, whose sum is σ = 540350. Its totient is φ = 540348.

The previous prime is 540347. The next prime is 540367. The reversal of 540349 is 943045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 308025 + 232324 = 555^2 + 482^2 .

It is a cyclic number.

It is not a de Polignac number, because 540349 - 2¹ = 540347 is a prime.

Together with 540347, it forms a pair of twin primes.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270174 + 270175.

It is an arithmetic number, because the mean of its divisors is an integer number (270175).

2⁵⁴⁰³⁴⁹ is an apocalyptic number.

It is an amenable number.

540349 is a deficient number, since it is larger than the sum of its proper divisors (1).

540349 is an equidigital number, since it uses as much as digits as its factorization.

540349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 540349 is about 735.0843489015. The cubic root of 540349 is about 81.4500679004.

The spelling of 540349 in words is "five hundred forty thousand, three hundred forty-nine".