616010121 has 24 divisors (see below), whose sum is σ = 906065160. Its totient is φ = 403232256.

The previous prime is 616010099. The next prime is 616010137. The reversal of 616010121 is 121010616.

616010121 is a `hidden beast` number, since 61 + 601 + 0 + 1 + 2 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 111513600 + 504496521 = 10560^2 + 22461^2 .

It is not a de Polignac number, because 616010121 - 2⁹ = 616009609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 616010094 and 616010103.

It is not an unprimeable number, because it can be changed into a prime (616010221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108075 + ... + 113631.

It is an arithmetic number, because the mean of its divisors is an integer number (37752715).

Almost surely, 2^616010121 is an apocalyptic number.

It is an amenable number.

616010121 is a deficient number, since it is larger than the sum of its proper divisors (290055039).

616010121 is a wasteful number, since it uses less digits than its factorization.

616010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5785 (or 5782 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 616010121 is about 24819.5511844997. The cubic root of 616010121 is about 850.8688329522.

Adding to 616010121 its reverse (121010616), we get a palindrome (737020737).

The spelling of 616010121 in words is "six hundred sixteen million, ten thousand, one hundred twenty-one".