542691574 has 16 divisors (see below), whose sum is σ = 821587968. Its totient is φ = 268835112.

The previous prime is 542691571. The next prime is 542691577. The reversal of 542691574 is 475196245.

It is an interprime number because it is at equal distance from previous prime (542691571) and next prime (542691577).

It is a self number, because there is not a number n which added to its sum of digits gives 542691574.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542691571) 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 in 7 ways as a sum of consecutive naturals, for example, 309769 + ... + 311515.

It is an arithmetic number, because the mean of its divisors is an integer number (51349248).

Almost surely, 2^542691574 is an apocalyptic number.

542691574 is a deficient number, since it is larger than the sum of its proper divisors (278896394).

542691574 is a wasteful number, since it uses less digits than its factorization.

542691574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3099.

The product of its digits is 302400, while the sum is 43.

The square root of 542691574 is about 23295.7415421789. The cubic root of 542691574 is about 815.6760165757.

The spelling of 542691574 in words is "five hundred forty-two million, six hundred ninety-one thousand, five hundred seventy-four".