1325228205 has 32 divisors (see below), whose sum is σ = 2464358400. Its totient is φ = 595547712.

The previous prime is 1325228197. The next prime is 1325228221. The reversal of 1325228205 is 5028225231.

It is not a de Polignac number, because 1325228205 - 2³ = 1325228197 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 100765 + ... + 113154.

It is an arithmetic number, because the mean of its divisors is an integer number (77011200).

Almost surely, 2^1325228205 is an apocalyptic number.

1325228205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1325228205 is a deficient number, since it is larger than the sum of its proper divisors (1139130195).

1325228205 is a wasteful number, since it uses less digits than its factorization.

1325228205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213993.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 1325228205 is about 36403.6839481940. The cubic root of 1325228205 is about 1098.4076699277.

The spelling of 1325228205 in words is "one billion, three hundred twenty-five million, two hundred twenty-eight thousand, two hundred five".