542951243 has 2 divisors, whose sum is σ = 542951244. Its totient is φ = 542951242.

The previous prime is 542951173. The next prime is 542951261. The reversal of 542951243 is 342159245.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 542951243 - 2¹² = 542947147 is a prime.

It is not a weakly prime, because it can be changed into another prime (542951273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271475621 + 271475622.

It is an arithmetic number, because the mean of its divisors is an integer number (271475622).

Almost surely, 2^542951243 is an apocalyptic number.

542951243 is a deficient number, since it is larger than the sum of its proper divisors (1).

542951243 is an equidigital number, since it uses as much as digits as its factorization.

542951243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 35.

The square root of 542951243 is about 23301.3141904057. The cubic root of 542951243 is about 815.8060916882.

The spelling of 542951243 in words is "five hundred forty-two million, nine hundred fifty-one thousand, two hundred forty-three".