540671951 has 2 divisors, whose sum is σ = 540671952. Its totient is φ = 540671950.

The previous prime is 540671947. The next prime is 540671953. The reversal of 540671951 is 159176045.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 540671951 - 2² = 540671947 is a prime.

Together with 540671953, 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 (540671953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270335975 + 270335976.

It is an arithmetic number, because the mean of its divisors is an integer number (270335976).

Almost surely, 2^540671951 is an apocalyptic number.

540671951 is a deficient number, since it is larger than the sum of its proper divisors (1).

540671951 is an equidigital number, since it uses as much as digits as its factorization.

540671951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 540671951 is about 23252.3536658120. The cubic root of 540671951 is about 814.6629145351.

The spelling of 540671951 in words is "five hundred forty million, six hundred seventy-one thousand, nine hundred fifty-one".