1061797831 has 2 divisors, whose sum is σ = 1061797832. Its totient is φ = 1061797830.

The previous prime is 1061797823. The next prime is 1061797853. The reversal of 1061797831 is 1387971601.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (1387971601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1061797831 - 2³ = 1061797823 is a prime.

It is a super-2 number, since 2×1061797831² = 2254829267832609122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1061797861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530898915 + 530898916.

It is an arithmetic number, because the mean of its divisors is an integer number (530898916).

Almost surely, 2^1061797831 is an apocalyptic number.

1061797831 is a deficient number, since it is larger than the sum of its proper divisors (1).

1061797831 is an equidigital number, since it uses as much as digits as its factorization.

1061797831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 43.

The square root of 1061797831 is about 32585.2394651321. The cubic root of 1061797831 is about 1020.1889407137.

The spelling of 1061797831 in words is "one billion, sixty-one million, seven hundred ninety-seven thousand, eight hundred thirty-one".