616457261 has 8 divisors (see below), whose sum is σ = 741602880. Its totient is φ = 500581728.

The previous prime is 616457251. The next prime is 616457269. The reversal of 616457261 is 162754616.

616457261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 616457261 - 2¹⁰ = 616456237 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 (616457269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2317376 + ... + 2317641.

It is an arithmetic number, because the mean of its divisors is an integer number (92700360).

Almost surely, 2^616457261 is an apocalyptic number.

It is an amenable number.

616457261 is a deficient number, since it is larger than the sum of its proper divisors (125145619).

616457261 is a wasteful number, since it uses less digits than its factorization.

616457261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4635043.

The product of its digits is 60480, while the sum is 38.

The square root of 616457261 is about 24828.5573684820. The cubic root of 616457261 is about 851.0746550432.

The spelling of 616457261 in words is "six hundred sixteen million, four hundred fifty-seven thousand, two hundred sixty-one".