542694907 has 4 divisors (see below), whose sum is σ = 542901816. Its totient is φ = 542488000.

The previous prime is 542694877. The next prime is 542694923. The reversal of 542694907 is 709496245.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 709496245 = 5 ⋅141899249.

It is a cyclic number.

It is not a de Polignac number, because 542694907 - 2²³ = 534306299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542694937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99469 + ... + 104782.

It is an arithmetic number, because the mean of its divisors is an integer number (135725454).

Almost surely, 2^542694907 is an apocalyptic number.

542694907 is a deficient number, since it is larger than the sum of its proper divisors (206909).

542694907 is a wasteful number, since it uses less digits than its factorization.

542694907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206908.

The product of its (nonzero) digits is 544320, while the sum is 46.

The square root of 542694907 is about 23295.8130787487. The cubic root of 542694907 is about 815.6776864269.

The spelling of 542694907 in words is "five hundred forty-two million, six hundred ninety-four thousand, nine hundred seven".