1012385459 has 2 divisors, whose sum is σ = 1012385460. Its totient is φ = 1012385458.

The previous prime is 1012385443. The next prime is 1012385461. The reversal of 1012385459 is 9545832101.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1012385459 - 2⁴ = 1012385443 is a prime.

Together with 1012385461, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1012381459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506192729 + 506192730.

It is an arithmetic number, because the mean of its divisors is an integer number (506192730).

Almost surely, 2^1012385459 is an apocalyptic number.

1012385459 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012385459 is an equidigital number, since it uses as much as digits as its factorization.

1012385459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 1012385459 is about 31818.0052643154. The cubic root of 1012385459 is about 1004.1115582536. Note that the first 3 decimals are identical.

The spelling of 1012385459 in words is "one billion, twelve million, three hundred eighty-five thousand, four hundred fifty-nine".