1225365205 has 8 divisors (see below), whose sum is σ = 1470661632. Its totient is φ = 980143248.

The previous prime is 1225365187. The next prime is 1225365263. The reversal of 1225365205 is 5025635221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1225365205 - 2²³ = 1216976597 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 7 ways as a sum of consecutive naturals, for example, 28372 + ... + 57058.

It is an arithmetic number, because the mean of its divisors is an integer number (183832704).

Almost surely, 2^1225365205 is an apocalyptic number.

It is an amenable number.

1225365205 is a deficient number, since it is larger than the sum of its proper divisors (245296427).

1225365205 is an equidigital number, since it uses as much as digits as its factorization.

1225365205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37235.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 1225365205 is about 35005.2168254962. The cubic root of 1225365205 is about 1070.0938005520.

The spelling of 1225365205 in words is "one billion, two hundred twenty-five million, three hundred sixty-five thousand, two hundred five".