542135173 has 2 divisors, whose sum is σ = 542135174. Its totient is φ = 542135172.

The previous prime is 542135147. The next prime is 542135183. The reversal of 542135173 is 371531245.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 342139009 + 199996164 = 18497^2 + 14142^2 .

It is a cyclic number.

It is not a de Polignac number, because 542135173 - 2⁵ = 542135141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542135183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271067586 + 271067587.

It is an arithmetic number, because the mean of its divisors is an integer number (271067587).

Almost surely, 2^542135173 is an apocalyptic number.

It is an amenable number.

542135173 is a deficient number, since it is larger than the sum of its proper divisors (1).

542135173 is an equidigital number, since it uses as much as digits as its factorization.

542135173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12600, while the sum is 31.

The square root of 542135173 is about 23283.7963614184. The cubic root of 542135173 is about 815.3971607368.

The spelling of 542135173 in words is "five hundred forty-two million, one hundred thirty-five thousand, one hundred seventy-three".