1250865 has 72 divisors (see below), whose sum is σ = 2852928. Its totient is φ = 492480.

The previous prime is 1250863. The next prime is 1250867. The reversal of 1250865 is 5680521.

It is an interprime number because it is at equal distance from previous prime (1250863) and next prime (1250867).

It is not a de Polignac number, because 1250865 - 2¹ = 1250863 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1250863) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 65826 + ... + 65844.

It is an arithmetic number, because the mean of its divisors is an integer number (39624).

2^1250865 is an apocalyptic number.

1250865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1250865 is an abundant number, since it is smaller than the sum of its proper divisors (1602063).

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

1250865 is a wasteful number, since it uses less digits than its factorization.

1250865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67 (or 45 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 1250865 is about 1118.4207616099. The cubic root of 1250865 is about 107.7465765857.

The spelling of 1250865 in words is "one million, two hundred fifty thousand, eight hundred sixty-five".