1063861415 has 4 divisors (see below), whose sum is σ = 1276633704. Its totient is φ = 851089128.

The previous prime is 1063861397. The next prime is 1063861423. The reversal of 1063861415 is 5141683601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1063861415 - 2²² = 1059667111 is a prime.

It is a super-2 number, since 2×1063861415² = 2263602220651604450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106386137 + ... + 106386146.

It is an arithmetic number, because the mean of its divisors is an integer number (319158426).

Almost surely, 2^1063861415 is an apocalyptic number.

1063861415 is a deficient number, since it is larger than the sum of its proper divisors (212772289).

1063861415 is an equidigital number, since it uses as much as digits as its factorization.

1063861415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212772288.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 1063861415 is about 32616.8884935397. Note that the first 3 decimals coincide. The cubic root of 1063861415 is about 1020.8494189922.

The spelling of 1063861415 in words is "one billion, sixty-three million, eight hundred sixty-one thousand, four hundred fifteen".