1061315505 has 24 divisors (see below), whose sum is σ = 1854108672. Its totient is φ = 561574944.

The previous prime is 1061315501. The next prime is 1061315533. The reversal of 1061315505 is 5055131601.

1061315505 is a `hidden beast` number, since 106 + 1 + 3 + 1 + 550 + 5 = 666.

It is not a de Polignac number, because 1061315505 - 2² = 1061315501 is a prime.

It is a super-2 number, since 2×1061315505² = 2252781202306810050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1061315501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87139 + ... + 98568.

It is an arithmetic number, because the mean of its divisors is an integer number (77254528).

Almost surely, 2^1061315505 is an apocalyptic number.

1061315505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1061315505 is a deficient number, since it is larger than the sum of its proper divisors (792793167).

1061315505 is a wasteful number, since it uses less digits than its factorization.

1061315505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185845 (or 185842 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 27.

The square root of 1061315505 is about 32577.8376354233. The cubic root of 1061315505 is about 1020.0344423202.

The spelling of 1061315505 in words is "one billion, sixty-one million, three hundred fifteen thousand, five hundred five".