1312850 has 72 divisors (see below), whose sum is σ = 3166464. Its totient is φ = 396000.

The previous prime is 1312847. The next prime is 1312853. The reversal of 1312850 is 582131.

It is an interprime number because it is at equal distance from previous prime (1312847) and next prime (1312853).

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312853) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 42335 + ... + 42365.

2^1312850 is an apocalyptic number.

1312850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312850 is an abundant number, since it is smaller than the sum of its proper divisors (1853614).

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

1312850 is a wasteful number, since it uses less digits than its factorization.

1312850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72 (or 56 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1312850 is about 1145.7966660800. The cubic root of 1312850 is about 109.4977098970.

Adding to 1312850 its reverse (582131), we get a palindrome (1894981).

The spelling of 1312850 in words is "one million, three hundred twelve thousand, eight hundred fifty".