610401321 has 24 divisors (see below), whose sum is σ = 917022080. Its totient is φ = 390907296.

The previous prime is 610401313. The next prime is 610401331. The reversal of 610401321 is 123104016.

It is a happy number.

610401321 is a `hidden beast` number, since 610 + 40 + 13 + 2 + 1 = 666.

It is not a de Polignac number, because 610401321 - 2³ = 610401313 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 610401294 and 610401303.

It is not an unprimeable number, because it can be changed into a prime (610401331) 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, 14706 + ... + 37908.

Almost surely, 2^610401321 is an apocalyptic number.

It is an amenable number.

610401321 is a deficient number, since it is larger than the sum of its proper divisors (306620759).

610401321 is a wasteful number, since it uses less digits than its factorization.

610401321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23325 (or 23322 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 610401321 is about 24706.3012407766. The cubic root of 610401321 is about 848.2785557124.

Adding to 610401321 its reverse (123104016), we get a palindrome (733505337).

The spelling of 610401321 in words is "six hundred ten million, four hundred one thousand, three hundred twenty-one".