1204161365 has 16 divisors (see below), whose sum is σ = 1627209216. Its totient is φ = 847502400.

The previous prime is 1204161341. The next prime is 1204161373. The reversal of 1204161365 is 5631614021.

It is a happy number.

It is not a de Polignac number, because 1204161365 - 2²⁰ = 1203112789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 351422 + ... + 354831.

It is an arithmetic number, because the mean of its divisors is an integer number (101700576).

Almost surely, 2^1204161365 is an apocalyptic number.

It is an amenable number.

1204161365 is a deficient number, since it is larger than the sum of its proper divisors (423047851).

1204161365 is a wasteful number, since it uses less digits than its factorization.

1204161365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706300.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1204161365 is about 34701.0282988847. The cubic root of 1204161365 is about 1063.8855159413.

Adding to 1204161365 its reverse (5631614021), we get a palindrome (6835775386).

The spelling of 1204161365 in words is "one billion, two hundred four million, one hundred sixty-one thousand, three hundred sixty-five".