1255290 has 16 divisors (see below), whose sum is σ = 3012768. Its totient is φ = 334736.

The previous prime is 1255279. The next prime is 1255301. The reversal of 1255290 is 925521.

It is an interprime number because it is at equal distance from previous prime (1255279) and next prime (1255301).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1255290.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20892 + ... + 20951.

It is an arithmetic number, because the mean of its divisors is an integer number (188298).

2^1255290 is an apocalyptic number.

1255290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1255290 is an abundant number, since it is smaller than the sum of its proper divisors (1757478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1255290 is a wasteful number, since it uses less digits than its factorization.

1255290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41853.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 1255290 is about 1120.3972509784. The cubic root of 1255290 is about 107.8734801002.

The spelling of 1255290 in words is "one million, two hundred fifty-five thousand, two hundred ninety".