1225365079 has 4 divisors (see below), whose sum is σ = 1242150976. Its totient is φ = 1208579184.

The previous prime is 1225364989. The next prime is 1225365103. The reversal of 1225365079 is 9705635221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1225365079 - 2¹³ = 1225356887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225365979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8392839 + ... + 8392984.

It is an arithmetic number, because the mean of its divisors is an integer number (310537744).

Almost surely, 2^1225365079 is an apocalyptic number.

1225365079 is a deficient number, since it is larger than the sum of its proper divisors (16785897).

1225365079 is an equidigital number, since it uses as much as digits as its factorization.

1225365079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16785896.

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 1225365079 is about 35005.2150257644. The cubic root of 1225365079 is about 1070.0937638740.

The spelling of 1225365079 in words is "one billion, two hundred twenty-five million, three hundred sixty-five thousand, seventy-nine".