616061 has 4 divisors (see below), whose sum is σ = 630432. Its totient is φ = 601692.

The previous prime is 616051. The next prime is 616069. The reversal of 616061 is 160616.

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 not a de Polignac number, because 616061 - 2⁶ = 615997 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 (616069) 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, 7121 + ... + 7206.

It is an arithmetic number, because the mean of its divisors is an integer number (157608).

2⁶¹⁶⁰⁶¹ is an apocalyptic number.

It is an amenable number.

616061 is a deficient number, since it is larger than the sum of its proper divisors (14371).

616061 is a wasteful number, since it uses less digits than its factorization.

616061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14370.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 616061 is about 784.8955344503. The cubic root of 616061 is about 85.0892257980.

Adding to 616061 its reverse (160616), we get a palindrome (776677).

The spelling of 616061 in words is "six hundred sixteen thousand, sixty-one".