616147069 has 4 divisors (see below), whose sum is σ = 642936096. Its totient is φ = 589358044.

The previous prime is 616146967. The next prime is 616147087. The reversal of 616147069 is 960741616.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-616147069 is a prime.

It is a super-2 number, since 2×616147069² = 759274421274581522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616147969) 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, 13394479 + ... + 13394524.

It is an arithmetic number, because the mean of its divisors is an integer number (160734024).

Almost surely, 2^616147069 is an apocalyptic number.

It is an amenable number.

616147069 is a deficient number, since it is larger than the sum of its proper divisors (26789027).

616147069 is a wasteful number, since it uses less digits than its factorization.

616147069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26789026.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 616147069 is about 24822.3099045999. The cubic root of 616147069 is about 850.9318817815.

The spelling of 616147069 in words is "six hundred sixteen million, one hundred forty-seven thousand, sixty-nine".