1000345015 has 4 divisors (see below), whose sum is σ = 1200414024. Its totient is φ = 800276008.

The previous prime is 1000345013. The next prime is 1000345069. The reversal of 1000345015 is 5105430001.

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 1000345015 - 2¹ = 1000345013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000344983 and 1000345001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000345013) 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, 100034497 + ... + 100034506.

It is an arithmetic number, because the mean of its divisors is an integer number (300103506).

Almost surely, 2^1000345015 is an apocalyptic number.

1000345015 is a deficient number, since it is larger than the sum of its proper divisors (200069009).

1000345015 is an equidigital number, since it uses as much as digits as its factorization.

1000345015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200069008.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 1000345015 is about 31628.2312973710. The cubic root of 1000345015 is about 1000.1149917764.

Adding to 1000345015 its reverse (5105430001), we get a palindrome (6105775016).

It can be divided in two parts, 10003 and 45015, that multiplied together give a triangular number (450285045 = T₃₀₀₀₉).

The spelling of 1000345015 in words is "one billion, three hundred forty-five thousand, fifteen".