542947 has 2 divisors, whose sum is σ = 542948. Its totient is φ = 542946.

The previous prime is 542939. The next prime is 542951. The reversal of 542947 is 749245.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 542947 - 2³ = 542939 is a prime.

542947 is a lucky number.

It is a plaindrome in base 12.

It is not a weakly prime, because it can be changed into another prime (542987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271473 + 271474.

It is an arithmetic number, because the mean of its divisors is an integer number (271474).

2⁵⁴²⁹⁴⁷ is an apocalyptic number.

542947 is a deficient number, since it is larger than the sum of its proper divisors (1).

542947 is an equidigital number, since it uses as much as digits as its factorization.

542947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 31.

The square root of 542947 is about 736.8493740243. The cubic root of 542947 is about 81.5803966590.

It can be divided in two parts, 5429 and 47, that added together give a square (5476 = 74²).

The spelling of 542947 in words is "five hundred forty-two thousand, nine hundred forty-seven".