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542131061 is a prime number
BaseRepresentation
bin100000010100000…
…100001101110101
31101210010010000012
4200110010031311
52102241143221
6125443430005
716302016013
oct4024041565
91353103005
10542131061
112590230aa
12131685305
1388416914
14520018b3
15328db65b
hex20504375

542131061 has 2 divisors, whose sum is σ = 542131062. Its totient is φ = 542131060.

The previous prime is 542131001. The next prime is 542131097. The reversal of 542131061 is 160131245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 471150436 + 70980625 = 21706^2 + 8425^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-542131061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542131001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271065530 + 271065531.

It is an arithmetic number, because the mean of its divisors is an integer number (271065531).

Almost surely, 2542131061 is an apocalyptic number.

It is an amenable number.

542131061 is a deficient number, since it is larger than the sum of its proper divisors (1).

542131061 is an equidigital number, since it uses as much as digits as its factorization.

542131061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 542131061 is about 23283.7080594995. The cubic root of 542131061 is about 815.3950991836.

The spelling of 542131061 in words is "five hundred forty-two million, one hundred thirty-one thousand, sixty-one".