616549159 has 4 divisors (see below), whose sum is σ = 628182216. Its totient is φ = 604916104.

The previous prime is 616549123. The next prime is 616549207. The reversal of 616549159 is 951945616.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 616549159 - 2¹⁵ = 616516391 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 (616540159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5816449 + ... + 5816554.

It is an arithmetic number, because the mean of its divisors is an integer number (157045554).

Almost surely, 2^616549159 is an apocalyptic number.

616549159 is a deficient number, since it is larger than the sum of its proper divisors (11633057).

616549159 is a wasteful number, since it uses less digits than its factorization.

616549159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11633056.

The product of its digits is 291600, while the sum is 46.

The square root of 616549159 is about 24830.4079507365. The cubic root of 616549159 is about 851.1169440914.

The spelling of 616549159 in words is "six hundred sixteen million, five hundred forty-nine thousand, one hundred fifty-nine".