542158957 has 2 divisors, whose sum is σ = 542158958. Its totient is φ = 542158956.

The previous prime is 542158943. The next prime is 542158961. The reversal of 542158957 is 759851245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 436768201 + 105390756 = 20899^2 + 10266^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542158957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542158997) 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, 271079478 + 271079479.

It is an arithmetic number, because the mean of its divisors is an integer number (271079479).

Almost surely, 2^542158957 is an apocalyptic number.

It is an amenable number.

542158957 is a deficient number, since it is larger than the sum of its proper divisors (1).

542158957 is an equidigital number, since it uses as much as digits as its factorization.

542158957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504000, while the sum is 46.

The square root of 542158957 is about 23284.3070972705. The cubic root of 542158957 is about 815.4090846526.

The spelling of 542158957 in words is "five hundred forty-two million, one hundred fifty-eight thousand, nine hundred fifty-seven".