1015945506 has 12 divisors (see below), whose sum is σ = 2201215302. Its totient is φ = 338648496.

The previous prime is 1015945493. The next prime is 1015945543. The reversal of 1015945506 is 6055495101.

1015945506 is a `hidden beast` number, since 1 + 0 + 15 + 94 + 550 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 972504225 + 43441281 = 31185^2 + 6591^2 .

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 28220691 + ... + 28220726.

Almost surely, 2^1015945506 is an apocalyptic number.

1015945506 is an abundant number, since it is smaller than the sum of its proper divisors (1185269796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1015945506 is a wasteful number, since it uses less digits than its factorization.

1015945506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56441425 (or 56441422 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 1015945506 is about 31873.9000751398. The cubic root of 1015945506 is about 1005.2871652839.

The spelling of 1015945506 in words is "one billion, fifteen million, nine hundred forty-five thousand, five hundred six".