1610054821 has 2 divisors, whose sum is σ = 1610054822. Its totient is φ = 1610054820.

The previous prime is 1610054807. The next prime is 1610054827. The reversal of 1610054821 is 1284500161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1591132321 + 18922500 = 39889^2 + 4350^2 .

It is a cyclic number.

It is not a de Polignac number, because 1610054821 - 2¹³ = 1610046629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1610054821.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1610054827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 805027410 + 805027411.

It is an arithmetic number, because the mean of its divisors is an integer number (805027411).

Almost surely, 2^1610054821 is an apocalyptic number.

It is an amenable number.

1610054821 is a deficient number, since it is larger than the sum of its proper divisors (1).

1610054821 is an equidigital number, since it uses as much as digits as its factorization.

1610054821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 1610054821 is about 40125.4884207034. The cubic root of 1610054821 is about 1172.0520204771.

Adding to 1610054821 its reverse (1284500161), we get a palindrome (2894554982).

The spelling of 1610054821 in words is "one billion, six hundred ten million, fifty-four thousand, eight hundred twenty-one".