1073985631 has 2 divisors, whose sum is σ = 1073985632. Its totient is φ = 1073985630.

The previous prime is 1073985629. The next prime is 1073985641. The reversal of 1073985631 is 1365893701.

It is a weak prime.

It is an emirp because it is prime and its reverse (1365893701) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1073985631 - 2¹ = 1073985629 is a prime.

It is a super-2 number, since 2×1073985631² = 2306890271188936322, which contains 22 as substring.

Together with 1073985629, 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 (1073985641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536992815 + 536992816.

It is an arithmetic number, because the mean of its divisors is an integer number (536992816).

Almost surely, 2^1073985631 is an apocalyptic number.

1073985631 is a deficient number, since it is larger than the sum of its proper divisors (1).

1073985631 is an equidigital number, since it uses as much as digits as its factorization.

1073985631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 1073985631 is about 32771.7199884290. The cubic root of 1073985631 is about 1024.0774982927.

The spelling of 1073985631 in words is "one billion, seventy-three million, nine hundred eighty-five thousand, six hundred thirty-one".