1012405417 has 4 divisors (see below), whose sum is σ = 1031507460. Its totient is φ = 993303376.

The previous prime is 1012405411. The next prime is 1012405423. The reversal of 1012405417 is 7145042101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7145042101 = 619 ⋅11542879.

It is an interprime number because it is at equal distance from previous prime (1012405411) and next prime (1012405423).

It can be written as a sum of positive squares in 2 ways, for example, as 324864576 + 687540841 = 18024^2 + 26221^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012405417 - 2²⁷ = 878187689 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012405391 and 1012405400.

It is not an unprimeable number, because it can be changed into a prime (1012405411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9550942 + ... + 9551047.

It is an arithmetic number, because the mean of its divisors is an integer number (257876865).

Almost surely, 2^1012405417 is an apocalyptic number.

It is an amenable number.

1012405417 is a deficient number, since it is larger than the sum of its proper divisors (19102043).

1012405417 is an equidigital number, since it uses as much as digits as its factorization.

1012405417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19102042.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 1012405417 is about 31818.3188902242. The cubic root of 1012405417 is about 1004.1181565068.

Adding to 1012405417 its reverse (7145042101), we get a palindrome (8157447518).

The spelling of 1012405417 in words is "one billion, twelve million, four hundred five thousand, four hundred seventeen".