542452397 has 2 divisors, whose sum is σ = 542452398. Its totient is φ = 542452396.

The previous prime is 542452369. The next prime is 542452411. The reversal of 542452397 is 793254245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 541074121 + 1378276 = 23261^2 + 1174^2 .

It is a cyclic number.

It is not a de Polignac number, because 542452397 - 2²² = 538258093 is a prime.

It is a super-2 number, since 2×542452397² = 588509206022091218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542452327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271226198 + 271226199.

It is an arithmetic number, because the mean of its divisors is an integer number (271226199).

Almost surely, 2^542452397 is an apocalyptic number.

It is an amenable number.

542452397 is a deficient number, since it is larger than the sum of its proper divisors (1).

542452397 is an equidigital number, since it uses as much as digits as its factorization.

542452397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 302400, while the sum is 41.

The square root of 542452397 is about 23290.6074845634. The cubic root of 542452397 is about 815.5561697361.

The spelling of 542452397 in words is "five hundred forty-two million, four hundred fifty-two thousand, three hundred ninety-seven".