1630253 has 2 divisors, whose sum is σ = 1630254. Its totient is φ = 1630252.

The previous prime is 1630247. The next prime is 1630261. The reversal of 1630253 is 3520361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1605289 + 24964 = 1267^2 + 158^2 .

It is a cyclic number.

It is not a de Polignac number, because 1630253 - 2⁸ = 1629997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1630243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 815126 + 815127.

It is an arithmetic number, because the mean of its divisors is an integer number (815127).

2^1630253 is an apocalyptic number.

It is an amenable number.

1630253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1630253 is an equidigital number, since it uses as much as digits as its factorization.

1630253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 1630253 is about 1276.8136120828. The cubic root of 1630253 is about 117.6932808033.

The spelling of 1630253 in words is "one million, six hundred thirty thousand, two hundred fifty-three".