610161613 has 2 divisors, whose sum is σ = 610161614. Its totient is φ = 610161612.

The previous prime is 610161583. The next prime is 610161647. The reversal of 610161613 is 316161016.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 575904004 + 34257609 = 23998^2 + 5853^2 .

It is a cyclic number.

It is not a de Polignac number, because 610161613 - 2²¹ = 608064461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (610161683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305080806 + 305080807.

It is an arithmetic number, because the mean of its divisors is an integer number (305080807).

Almost surely, 2^610161613 is an apocalyptic number.

It is an amenable number.

610161613 is a deficient number, since it is larger than the sum of its proper divisors (1).

610161613 is an equidigital number, since it uses as much as digits as its factorization.

610161613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 610161613 is about 24701.4496133324. The cubic root of 610161613 is about 848.1674999352.

The spelling of 610161613 in words is "six hundred ten million, one hundred sixty-one thousand, six hundred thirteen".