1205151201 has 24 divisors (see below), whose sum is σ = 1752953280. Its totient is φ = 797834016.

The previous prime is 1205151179. The next prime is 1205151229. The reversal of 1205151201 is 1021515021.

It is not a de Polignac number, because 1205151201 - 2¹⁸ = 1204889057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1205151601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1530930 + ... + 1531716.

It is an arithmetic number, because the mean of its divisors is an integer number (73039720).

Almost surely, 2^1205151201 is an apocalyptic number.

It is an amenable number.

1205151201 is a deficient number, since it is larger than the sum of its proper divisors (547802079).

1205151201 is a wasteful number, since it uses less digits than its factorization.

1205151201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1765 (or 1762 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

The square root of 1205151201 is about 34715.2877130523. The cubic root of 1205151201 is about 1064.1769452573.

Adding to 1205151201 its reverse (1021515021), we get a palindrome (2226666222).

The spelling of 1205151201 in words is "one billion, two hundred five million, one hundred fifty-one thousand, two hundred one".