616230257 has 4 divisors (see below), whose sum is σ = 624030720. Its totient is φ = 608429796.

The previous prime is 616230253. The next prime is 616230259. The reversal of 616230257 is 752032616.

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 616230257 - 2² = 616230253 is a prime.

It is a super-3 number, since 3×616230257³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (616230253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3900113 + ... + 3900270.

It is an arithmetic number, because the mean of its divisors is an integer number (156007680).

Almost surely, 2^616230257 is an apocalyptic number.

It is an amenable number.

616230257 is a deficient number, since it is larger than the sum of its proper divisors (7800463).

616230257 is an equidigital number, since it uses as much as digits as its factorization.

616230257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7800462.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 616230257 is about 24823.9855180428. The cubic root of 616230257 is about 850.9701757427.

The spelling of 616230257 in words is "six hundred sixteen million, two hundred thirty thousand, two hundred fifty-seven".