1063187385 has 32 divisors (see below), whose sum is σ = 1838567808. Its totient is φ = 521525760.

The previous prime is 1063187383. The next prime is 1063187387. The reversal of 1063187385 is 5837813601.

It is an interprime number because it is at equal distance from previous prime (1063187383) and next prime (1063187387).

It is not a de Polignac number, because 1063187385 - 2¹ = 1063187383 is a prime.

It is a super-2 number, since 2×1063187385² = 2260734831246276450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1063187383) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45094 + ... + 64496.

It is an arithmetic number, because the mean of its divisors is an integer number (57455244).

Almost surely, 2^1063187385 is an apocalyptic number.

1063187385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1063187385 is a deficient number, since it is larger than the sum of its proper divisors (775380423).

1063187385 is a wasteful number, since it uses less digits than its factorization.

1063187385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19705.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 1063187385 is about 32606.5543257793. The cubic root of 1063187385 is about 1020.6337804728.

The spelling of 1063187385 in words is "one billion, sixty-three million, one hundred eighty-seven thousand, three hundred eighty-five".