1020415235 has 24 divisors (see below), whose sum is σ = 1476975456. Its totient is φ = 662878080.

The previous prime is 1020415223. The next prime is 1020415247. The reversal of 1020415235 is 5325140201.

It is an interprime number because it is at equal distance from previous prime (1020415223) and next prime (1020415247).

It is a de Polignac number, because none of the positive numbers 2^k-1020415235 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1020415235.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27746 + ... + 53015.

It is an arithmetic number, because the mean of its divisors is an integer number (61540644).

Almost surely, 2^1020415235 is an apocalyptic number.

1020415235 is a deficient number, since it is larger than the sum of its proper divisors (456560221).

1020415235 is an equidigital number, since it uses as much as digits as its factorization.

1020415235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80811 (or 80792 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1020415235 is about 31943.9389399617. The cubic root of 1020415235 is about 1006.7592874274.

Adding to 1020415235 its reverse (5325140201), we get a palindrome (6345555436).

The spelling of 1020415235 in words is "one billion, twenty million, four hundred fifteen thousand, two hundred thirty-five".