616521094 has 16 divisors (see below), whose sum is σ = 1063381248. Its totient is φ = 262601352.

The previous prime is 616521089. The next prime is 616521127. The reversal of 616521094 is 490125616.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 132802 + ... + 137365.

It is an arithmetic number, because the mean of its divisors is an integer number (66461328).

Almost surely, 2^616521094 is an apocalyptic number.

616521094 is a deficient number, since it is larger than the sum of its proper divisors (446860154).

616521094 is a wasteful number, since it uses less digits than its factorization.

616521094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270339.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 616521094 is about 24829.8428106180. The cubic root of 616521094 is about 851.1040297605.

The spelling of 616521094 in words is "six hundred sixteen million, five hundred twenty-one thousand, ninety-four".