539997941 has 4 divisors (see below), whose sum is σ = 617140512. Its totient is φ = 462855372.

The previous prime is 539997937. The next prime is 539997947. The reversal of 539997941 is 149799935.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 539997941 - 2² = 539997937 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539997947) 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, 38571275 + ... + 38571288.

It is an arithmetic number, because the mean of its divisors is an integer number (154285128).

Almost surely, 2^539997941 is an apocalyptic number.

It is an amenable number.

539997941 is a deficient number, since it is larger than the sum of its proper divisors (77142571).

539997941 is an equidigital number, since it uses as much as digits as its factorization.

539997941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77142570.

The product of its digits is 2755620, while the sum is 56.

The square root of 539997941 is about 23237.8557745761. The cubic root of 539997941 is about 814.3242499798.

The spelling of 539997941 in words is "five hundred thirty-nine million, nine hundred ninety-seven thousand, nine hundred forty-one".