1300831 has 4 divisors (see below), whose sum is σ = 1486672. Its totient is φ = 1114992.

The previous prime is 1300829. The next prime is 1300837. The reversal of 1300831 is 1380031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1300831 - 2¹ = 1300829 is a prime.

It is a super-2 number, since 2×1300831² = 3384322581122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1300837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92910 + ... + 92923.

It is an arithmetic number, because the mean of its divisors is an integer number (371668).

2^1300831 is an apocalyptic number.

1300831 is a deficient number, since it is larger than the sum of its proper divisors (185841).

1300831 is an equidigital number, since it uses as much as digits as its factorization.

1300831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185840.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1300831 is about 1140.5397844880. The cubic root of 1300831 is about 109.1625384165.

Adding to 1300831 its reverse (1380031), we get a palindrome (2680862).

The spelling of 1300831 in words is "one million, three hundred thousand, eight hundred thirty-one".