1012634459 has 2 divisors, whose sum is σ = 1012634460. Its totient is φ = 1012634458.

The previous prime is 1012634453. The next prime is 1012634527. The reversal of 1012634459 is 9544362101.

It is a weak prime.

It is an emirp because it is prime and its reverse (9544362101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1012634459 - 2⁴ = 1012634443 is a prime.

It is not a weakly prime, because it can be changed into another prime (1012634453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506317229 + 506317230.

It is an arithmetic number, because the mean of its divisors is an integer number (506317230).

Almost surely, 2^1012634459 is an apocalyptic number.

1012634459 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012634459 is an equidigital number, since it uses as much as digits as its factorization.

1012634459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 1012634459 is about 31821.9179026029. The cubic root of 1012634459 is about 1004.1938731731.

The spelling of 1012634459 in words is "one billion, twelve million, six hundred thirty-four thousand, four hundred fifty-nine".