1205262505 has 8 divisors (see below), whose sum is σ = 1463740992. Its totient is φ = 952592688.

The previous prime is 1205262503. The next prime is 1205262517. The reversal of 1205262505 is 5052625021.

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 1205262505 - 2¹ = 1205262503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1205262503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1451709 + ... + 1452538.

It is an arithmetic number, because the mean of its divisors is an integer number (182967624).

Almost surely, 2^1205262505 is an apocalyptic number.

It is an amenable number.

1205262505 is a deficient number, since it is larger than the sum of its proper divisors (258478487).

1205262505 is an equidigital number, since it uses as much as digits as its factorization.

1205262505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2904335.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 1205262505 is about 34716.8907738006. The cubic root of 1205262505 is about 1064.2097056015.

Adding to 1205262505 its reverse (5052625021), we get a palindrome (6257887526).

It can be divided in two parts, 120 and 5262505, that added together give a palindrome (5262625).

The spelling of 1205262505 in words is "one billion, two hundred five million, two hundred sixty-two thousand, five hundred five".