616535042 has 4 divisors (see below), whose sum is σ = 924802566. Its totient is φ = 308267520.

The previous prime is 616534993. The next prime is 616535053. The reversal of 616535042 is 240535616.

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

It can be written as a sum of positive squares in only one way, i.e., 586075681 + 30459361 = 24209^2 + 5519^2 .

It is an unprimeable number.

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, 154133759 + ... + 154133762.

Almost surely, 2^616535042 is an apocalyptic number.

616535042 is a deficient number, since it is larger than the sum of its proper divisors (308267524).

616535042 is a wasteful number, since it uses less digits than its factorization.

616535042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308267523.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 616535042 is about 24830.1236807230. The cubic root of 616535042 is about 851.1104480916.

The spelling of 616535042 in words is "six hundred sixteen million, five hundred thirty-five thousand, forty-two".