1005136456 has 8 divisors (see below), whose sum is σ = 1884630870. Its totient is φ = 502568224.

The previous prime is 1005136453. The next prime is 1005136507. The reversal of 1005136456 is 6546315001.

1005136456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 727380900 + 277755556 = 26970^2 + 16666^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1005136453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62821021 + ... + 62821036.

Almost surely, 2^1005136456 is an apocalyptic number.

It is an amenable number.

1005136456 is a deficient number, since it is larger than the sum of its proper divisors (879494414).

1005136456 is a wasteful number, since it uses less digits than its factorization.

1005136456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125642063 (or 125642059 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 1005136456 is about 31703.8870802935. The cubic root of 1005136456 is about 1001.7092288722.

The spelling of 1005136456 in words is "one billion, five million, one hundred thirty-six thousand, four hundred fifty-six".