1630051 has 2 divisors, whose sum is σ = 1630052. Its totient is φ = 1630050.

The previous prime is 1630049. The next prime is 1630091. The reversal of 1630051 is 1500361.

1630051 is nontrivially palindromic in base 2.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1630051 - 2¹ = 1630049 is a prime.

Together with 1630049, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1630021) 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 as a sum of consecutive naturals, namely, 815025 + 815026.

It is an arithmetic number, because the mean of its divisors is an integer number (815026).

2^1630051 is an apocalyptic number.

1630051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1630051 is an equidigital number, since it uses as much as digits as its factorization.

1630051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 1630051 is about 1276.7345064656. The cubic root of 1630051 is about 117.6884195896.

The spelling of 1630051 in words is "one million, six hundred thirty thousand, fifty-one".