1012205417 has 4 divisors (see below), whose sum is σ = 1036893396. Its totient is φ = 987517440.

The previous prime is 1012205401. The next prime is 1012205431. The reversal of 1012205417 is 7145022101.

1012205417 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7145022101 = 7 ⋅1020717443.

It can be written as a sum of positive squares in 2 ways, for example, as 28504921 + 983700496 = 5339^2 + 31364^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012205417 - 2⁴ = 1012205401 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012205392 and 1012205401.

It is not an unprimeable number, because it can be changed into a prime (1012205437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12343928 + ... + 12344009.

It is an arithmetic number, because the mean of its divisors is an integer number (259223349).

Almost surely, 2^1012205417 is an apocalyptic number.

It is an amenable number.

1012205417 is a deficient number, since it is larger than the sum of its proper divisors (24687979).

1012205417 is an equidigital number, since it uses as much as digits as its factorization.

1012205417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24687978.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 1012205417 is about 31815.1758913887. The cubic root of 1012205417 is about 1004.0520311998.

Adding to 1012205417 its reverse (7145022101), we get a palindrome (8157227518).

The spelling of 1012205417 in words is "one billion, twelve million, two hundred five thousand, four hundred seventeen".