1020415 has 8 divisors (see below), whose sum is σ = 1335888. Its totient is φ = 742080.

The previous prime is 1020413. The next prime is 1020419. The reversal of 1020415 is 5140201.

1020415 = T₁₈ + T₁₉ + ... + T₁₈₂.

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

It is not a de Polignac number, because 1020415 - 2¹ = 1020413 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020395 and 1020404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9222 + ... + 9331.

It is an arithmetic number, because the mean of its divisors is an integer number (166986).

2^1020415 is an apocalyptic number.

1020415 is a deficient number, since it is larger than the sum of its proper divisors (315473).

1020415 is a wasteful number, since it uses less digits than its factorization.

1020415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18569.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 1020415 is about 1010.1559285576. The cubic root of 1020415 is about 100.6759210142.

Adding to 1020415 its reverse (5140201), we get a palindrome (6160616).

The spelling of 1020415 in words is "one million, twenty thousand, four hundred fifteen".