1000641115 has 4 divisors (see below), whose sum is σ = 1200769344. Its totient is φ = 800512888.

The previous prime is 1000641091. The next prime is 1000641119. The reversal of 1000641115 is 5111460001.

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 1000641115 - 2¹³ = 1000632923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000641092 and 1000641101.

It is not an unprimeable number, because it can be changed into a prime (1000641119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100064107 + ... + 100064116.

It is an arithmetic number, because the mean of its divisors is an integer number (300192336).

Almost surely, 2^1000641115 is an apocalyptic number.

1000641115 is a deficient number, since it is larger than the sum of its proper divisors (200128229).

1000641115 is an equidigital number, since it uses as much as digits as its factorization.

1000641115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200128228.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 1000641115 is about 31632.9118956823. The cubic root of 1000641115 is about 1000.2136593464.

The spelling of 1000641115 in words is "one billion, six hundred forty-one thousand, one hundred fifteen".