542174849 has 4 divisors (see below), whose sum is σ = 542390100. Its totient is φ = 541959600.

The previous prime is 542174833. The next prime is 542174873. The reversal of 542174849 is 948471245.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 474934849 + 67240000 = 21793^2 + 8200^2 .

It is a cyclic number.

It is not a de Polignac number, because 542174849 - 2⁴ = 542174833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542174879) 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 in 3 ways as a sum of consecutive naturals, for example, 103802 + ... + 108899.

It is an arithmetic number, because the mean of its divisors is an integer number (135597525).

Almost surely, 2^542174849 is an apocalyptic number.

It is an amenable number.

542174849 is a deficient number, since it is larger than the sum of its proper divisors (215251).

542174849 is a wasteful number, since it uses less digits than its factorization.

542174849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215250.

The product of its digits is 322560, while the sum is 44.

The square root of 542174849 is about 23284.6483546563. The cubic root of 542174849 is about 815.4170517838.

The spelling of 542174849 in words is "five hundred forty-two million, one hundred seventy-four thousand, eight hundred forty-nine".