610145505 has 12 divisors (see below), whose sum is σ = 1057585620. Its totient is φ = 325410912.

The previous prime is 610145479. The next prime is 610145507. The reversal of 610145505 is 505541016.

It is a happy number.

610145505 is a `hidden beast` number, since 6 + 10 + 145 + 505 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 385415424 + 224730081 = 19632^2 + 14991^2 .

It is not a de Polignac number, because 610145505 - 2⁷ = 610145377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (610145507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6779350 + ... + 6779439.

It is an arithmetic number, because the mean of its divisors is an integer number (88132135).

Almost surely, 2^610145505 is an apocalyptic number.

It is an amenable number.

610145505 is a deficient number, since it is larger than the sum of its proper divisors (447440115).

610145505 is a wasteful number, since it uses less digits than its factorization.

610145505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13558800 (or 13558797 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 610145505 is about 24701.1235574417. The cubic root of 610145505 is about 848.1600361191.

The spelling of 610145505 in words is "six hundred ten million, one hundred forty-five thousand, five hundred five".