1242302205 has 16 divisors (see below), whose sum is σ = 1988731584. Its totient is φ = 662211840.

The previous prime is 1242302143. The next prime is 1242302227. The reversal of 1242302205 is 5022032421.

It is not a de Polignac number, because 1242302205 - 2⁷ = 1242302077 is a prime.

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, 8965 + ... + 50645.

It is an arithmetic number, because the mean of its divisors is an integer number (124295724).

Almost surely, 2^1242302205 is an apocalyptic number.

1242302205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1242302205 is a deficient number, since it is larger than the sum of its proper divisors (746429379).

1242302205 is a wasteful number, since it uses less digits than its factorization.

1242302205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43676.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 1242302205 is about 35246.3076789612. The cubic root of 1242302205 is about 1075.0015374054.

Adding to 1242302205 its reverse (5022032421), we get a palindrome (6264334626).

The spelling of 1242302205 in words is "one billion, two hundred forty-two million, three hundred two thousand, two hundred five".