542181229 has 2 divisors, whose sum is σ = 542181230. Its totient is φ = 542181228.

The previous prime is 542181223. The next prime is 542181247. The reversal of 542181229 is 922181245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 286117225 + 256064004 = 16915^2 + 16002^2 .

It is a cyclic number.

It is not a de Polignac number, because 542181229 - 2²⁹ = 5310317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 542181194 and 542181203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542181223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271090614 + 271090615.

It is an arithmetic number, because the mean of its divisors is an integer number (271090615).

Almost surely, 2^542181229 is an apocalyptic number.

It is an amenable number.

542181229 is a deficient number, since it is larger than the sum of its proper divisors (1).

542181229 is an equidigital number, since it uses as much as digits as its factorization.

542181229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 34.

The square root of 542181229 is about 23284.7853543897. The cubic root of 542181229 is about 815.4202502233.

The spelling of 542181229 in words is "five hundred forty-two million, one hundred eighty-one thousand, two hundred twenty-nine".