616344101 has 4 divisors (see below), whose sum is σ = 617159052. Its totient is φ = 615529152.

The previous prime is 616344089. The next prime is 616344109. The reversal of 616344101 is 101443616.

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

It can be written as a sum of positive squares in 2 ways, for example, as 216384100 + 399960001 = 14710^2 + 19999^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-616344101 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 (616344109) 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, 406340 + ... + 407853.

It is an arithmetic number, because the mean of its divisors is an integer number (154289763).

Almost surely, 2^616344101 is an apocalyptic number.

It is an amenable number.

616344101 is a deficient number, since it is larger than the sum of its proper divisors (814951).

616344101 is an equidigital number, since it uses as much as digits as its factorization.

616344101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814950.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 616344101 is about 24826.2784363666. The cubic root of 616344101 is about 851.0225760062.

Adding to 616344101 its reverse (101443616), we get a palindrome (717787717).

The spelling of 616344101 in words is "six hundred sixteen million, three hundred forty-four thousand, one hundred one".