1610516513 has 4 divisors (see below), whose sum is σ = 1695280560. Its totient is φ = 1525752468.

The previous prime is 1610516507. The next prime is 1610516533. The reversal of 1610516513 is 3156150161.

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 a de Polignac number, because none of the positive numbers 2^k-1610516513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1610516533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42381995 + ... + 42382032.

It is an arithmetic number, because the mean of its divisors is an integer number (423820140).

Almost surely, 2^1610516513 is an apocalyptic number.

It is an amenable number.

1610516513 is a deficient number, since it is larger than the sum of its proper divisors (84764047).

1610516513 is an equidigital number, since it uses as much as digits as its factorization.

1610516513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84764046.

The product of its (nonzero) digits is 2700, while the sum is 29.

The square root of 1610516513 is about 40131.2411096393. The cubic root of 1610516513 is about 1172.1640405398.

Adding to 1610516513 its reverse (3156150161), we get a palindrome (4766666674).

The spelling of 1610516513 in words is "one billion, six hundred ten million, five hundred sixteen thousand, five hundred thirteen".