542150742181 has 2 divisors, whose sum is σ = 542150742182. Its totient is φ = 542150742180.

The previous prime is 542150742139. The next prime is 542150742239. The reversal of 542150742181 is 181247051245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 488978532900 + 53172209281 = 699270^2 + 230591^2 .

It is a cyclic number.

It is not a de Polignac number, because 542150742181 - 2²⁷ = 542016524453 is a prime.

It is a super-2 number, since 2×542150742181² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542150742121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271075371090 + 271075371091.

It is an arithmetic number, because the mean of its divisors is an integer number (271075371091).

Almost surely, 2^542150742181 is an apocalyptic number.

It is an amenable number.

542150742181 is a deficient number, since it is larger than the sum of its proper divisors (1).

542150742181 is an equidigital number, since it uses as much as digits as its factorization.

542150742181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 89600, while the sum is 40.

The spelling of 542150742181 in words is "five hundred forty-two billion, one hundred fifty million, seven hundred forty-two thousand, one hundred eighty-one".