1020015345 has 16 divisors (see below), whose sum is σ = 1632421440. Its totient is φ = 543875904.

The previous prime is 1020015313. The next prime is 1020015377. The reversal of 1020015345 is 5435100201.

It is an interprime number because it is at equal distance from previous prime (1020015313) and next prime (1020015377).

It is not a de Polignac number, because 1020015345 - 2⁵ = 1020015313 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110602 + ... + 119468.

It is an arithmetic number, because the mean of its divisors is an integer number (102026340).

Almost surely, 2^1020015345 is an apocalyptic number.

1020015345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1020015345 is a deficient number, since it is larger than the sum of its proper divisors (612406095).

1020015345 is an equidigital number, since it uses as much as digits as its factorization.

1020015345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16544.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 1020015345 is about 31937.6790797328. The cubic root of 1020015345 is about 1006.6277574516.

Adding to 1020015345 its reverse (5435100201), we get a palindrome (6455115546).

The spelling of 1020015345 in words is "one billion, twenty million, fifteen thousand, three hundred forty-five".