1012831 has 2 divisors, whose sum is σ = 1012832. Its totient is φ = 1012830.

The previous prime is 1012829. The next prime is 1012861. The reversal of 1012831 is 1382101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1012831 - 2¹ = 1012829 is a prime.

It is a super-2 number, since 2×1012831² = 2051653269122, which contains 22 as substring.

Together with 1012829, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506415 + 506416.

It is an arithmetic number, because the mean of its divisors is an integer number (506416).

2^1012831 is an apocalyptic number.

1012831 is the 637-th centered pentagonal number.

1012831 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012831 is an equidigital number, since it uses as much as digits as its factorization.

1012831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1012831 is about 1006.3950516572. The cubic root of 1012831 is about 100.4258836563.

Adding to 1012831 its reverse (1382101), we get a palindrome (2394932).

The spelling of 1012831 in words is "one million, twelve thousand, eight hundred thirty-one".