610128061 has 4 divisors (see below), whose sum is σ = 636655392. Its totient is φ = 583600732.

The previous prime is 610128059. The next prime is 610128067. The reversal of 610128061 is 160821016.

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 610128061 - 2¹ = 610128059 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 (610128067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13263631 + ... + 13263676.

It is an arithmetic number, because the mean of its divisors is an integer number (159163848).

Almost surely, 2^610128061 is an apocalyptic number.

It is an amenable number.

610128061 is a deficient number, since it is larger than the sum of its proper divisors (26527331).

610128061 is a wasteful number, since it uses less digits than its factorization.

610128061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26527330.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 610128061 is about 24700.7704535709. The cubic root of 610128061 is about 848.1519531047.

Adding to 610128061 its reverse (160821016), we get a palindrome (770949077).

The spelling of 610128061 in words is "six hundred ten million, one hundred twenty-eight thousand, sixty-one".