1205613465 has 16 divisors (see below), whose sum is σ = 2204550528. Its totient is φ = 551137536.

The previous prime is 1205613407. The next prime is 1205613473. The reversal of 1205613465 is 5643165021.

It is not a de Polignac number, because 1205613465 - 2¹⁵ = 1205580697 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5740912 + ... + 5741121.

It is an arithmetic number, because the mean of its divisors is an integer number (137784408).

Almost surely, 2^1205613465 is an apocalyptic number.

1205613465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1205613465 is a deficient number, since it is larger than the sum of its proper divisors (998937063).

1205613465 is a wasteful number, since it uses less digits than its factorization.

1205613465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11482048.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 1205613465 is about 34721.9450060045. The cubic root of 1205613465 is about 1064.3129912039.

Adding to 1205613465 its reverse (5643165021), we get a palindrome (6848778486).

The spelling of 1205613465 in words is "one billion, two hundred five million, six hundred thirteen thousand, four hundred sixty-five".