1313250 has 64 divisors (see below), whose sum is σ = 3504384. Its totient is φ = 326400.

The previous prime is 1313239. The next prime is 1313293. The reversal of 1313250 is 523131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12699 + ... + 12801.

It is an arithmetic number, because the mean of its divisors is an integer number (54756).

2^1313250 is an apocalyptic number.

1313250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1313250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1752192).

1313250 is an abundant number, since it is smaller than the sum of its proper divisors (2191134).

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

1313250 is a wasteful number, since it uses less digits than its factorization.

1313250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 1313250 is about 1145.9712038267. The cubic root of 1313250 is about 109.5088293792.

Adding to 1313250 its reverse (523131), we get a palindrome (1836381).

The spelling of 1313250 in words is "one million, three hundred thirteen thousand, two hundred fifty".