542230457 has 2 divisors, whose sum is σ = 542230458. Its totient is φ = 542230456.

The previous prime is 542230433. The next prime is 542230459. The reversal of 542230457 is 754032245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 524455801 + 17774656 = 22901^2 + 4216^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542230457 is a prime.

Together with 542230459, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (542230459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271115228 + 271115229.

It is an arithmetic number, because the mean of its divisors is an integer number (271115229).

Almost surely, 2^542230457 is an apocalyptic number.

It is an amenable number.

542230457 is a deficient number, since it is larger than the sum of its proper divisors (1).

542230457 is an equidigital number, since it uses as much as digits as its factorization.

542230457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33600, while the sum is 32.

The square root of 542230457 is about 23285.8424155108. The cubic root of 542230457 is about 815.4449284988. Note that the first 3 decimals are identical.

The spelling of 542230457 in words is "five hundred forty-two million, two hundred thirty thousand, four hundred fifty-seven".