1020045115 has 8 divisors (see below), whose sum is σ = 1288478160. Its totient is φ = 773086752.

The previous prime is 1020045083. The next prime is 1020045121. The reversal of 1020045115 is 5115400201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1020045115 - 2⁵ = 1020045083 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 1020045092 and 1020045101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5368564 + ... + 5368753.

It is an arithmetic number, because the mean of its divisors is an integer number (161059770).

Almost surely, 2^1020045115 is an apocalyptic number.

1020045115 is a deficient number, since it is larger than the sum of its proper divisors (268433045).

1020045115 is a wasteful number, since it uses less digits than its factorization.

1020045115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10737341.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 1020045115 is about 31938.1451402551. The cubic root of 1020045115 is about 1006.6375504470.

Adding to 1020045115 its reverse (5115400201), we get a palindrome (6135445316).

The spelling of 1020045115 in words is "one billion, twenty million, forty-five thousand, one hundred fifteen".