1610605201 has 4 divisors (see below), whose sum is σ = 1610701092. Its totient is φ = 1610509312.

The previous prime is 1610605163. The next prime is 1610605207. The reversal of 1610605201 is 1025060161.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 501715201 + 1108890000 = 22399^2 + 33300^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1610605201 is a prime.

It is a super-2 number, since 2×1610605201² = 5188098226976500802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1610605207) 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, 15376 + ... + 58801.

It is an arithmetic number, because the mean of its divisors is an integer number (402675273).

Almost surely, 2^1610605201 is an apocalyptic number.

It is an amenable number.

1610605201 is a deficient number, since it is larger than the sum of its proper divisors (95891).

1610605201 is an equidigital number, since it uses as much as digits as its factorization.

1610605201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95890.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 1610605201 is about 40132.3460689753. The cubic root of 1610605201 is about 1172.1855564066.

Adding to 1610605201 its reverse (1025060161), we get a palindrome (2635665362).

The spelling of 1610605201 in words is "one billion, six hundred ten million, six hundred five thousand, two hundred one".