1255630 has 16 divisors (see below), whose sum is σ = 2273040. Its totient is φ = 499392.

The previous prime is 1255619. The next prime is 1255633. The reversal of 1255630 is 365521.

It is a happy number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255633) 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, 2866 + ... + 3274.

It is an arithmetic number, because the mean of its divisors is an integer number (142065).

2^1255630 is an apocalyptic number.

1255630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1255630 is a deficient number, since it is larger than the sum of its proper divisors (1017410).

1255630 is a wasteful number, since it uses less digits than its factorization.

1255630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723.

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

The square root of 1255630 is about 1120.5489726023. The cubic root of 1255630 is about 107.8832185331.

The spelling of 1255630 in words is "one million, two hundred fifty-five thousand, six hundred thirty".