1630255 has 8 divisors (see below), whose sum is σ = 2134224. Its totient is φ = 1185600.

The previous prime is 1630253. The next prime is 1630261. The reversal of 1630255 is 5520361.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1630255 - 2¹ = 1630253 is a prime.

It is a Duffinian number.

1630255 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14766 + ... + 14875.

It is an arithmetic number, because the mean of its divisors is an integer number (266778).

2^1630255 is an apocalyptic number.

1630255 is a deficient number, since it is larger than the sum of its proper divisors (503969).

1630255 is a wasteful number, since it uses less digits than its factorization.

1630255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29657.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 1630255 is about 1276.8143952823. The cubic root of 1630255 is about 117.6933289321.

The spelling of 1630255 in words is "one million, six hundred thirty thousand, two hundred fifty-five".