813250 has 16 divisors (see below), whose sum is σ = 1522872. Its totient is φ = 325200.

The previous prime is 813227. The next prime is 813251. The reversal of 813250 is 52318.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 522729 + 290521 = 723^2 + 539^2 .

It is a super-2 number, since 2×813250² = 1322751125000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (813251) 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, 1377 + ... + 1876.

2⁸¹³²⁵⁰ is an apocalyptic number.

813250 is a deficient number, since it is larger than the sum of its proper divisors (709622).

813250 is a wasteful number, since it uses less digits than its factorization.

813250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3270 (or 3260 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 813250 is about 901.8037480516. The cubic root of 813250 is about 93.3414817149.

Adding to 813250 its reverse (52318), we get a palindrome (865568).

The spelling of 813250 in words is "eight hundred thirteen thousand, two hundred fifty".