542991431 has 2 divisors, whose sum is σ = 542991432. Its totient is φ = 542991430.

The previous prime is 542991377. The next prime is 542991469. The reversal of 542991431 is 134199245.

It is an a-pointer prime, because the next prime (542991469) can be obtained adding 542991431 to its sum of digits (38).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 542991431 - 2¹⁴ = 542975047 is a prime.

It is a super-2 number, since 2×542991431² = 589679388278855522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542993431) 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, 271495715 + 271495716.

It is an arithmetic number, because the mean of its divisors is an integer number (271495716).

Almost surely, 2^542991431 is an apocalyptic number.

542991431 is a deficient number, since it is larger than the sum of its proper divisors (1).

542991431 is an equidigital number, since it uses as much as digits as its factorization.

542991431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 38.

The square root of 542991431 is about 23302.1765292429. The cubic root of 542991431 is about 815.8262192207.

The spelling of 542991431 in words is "five hundred forty-two million, nine hundred ninety-one thousand, four hundred thirty-one".