1265422135 has 8 divisors (see below), whose sum is σ = 1598428080. Its totient is φ = 959056704.

The previous prime is 1265422111. The next prime is 1265422153. The reversal of 1265422135 is 5312245621.

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 1265422135 - 2⁹ = 1265421623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1265422097 and 1265422106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6660022 + ... + 6660211.

It is an arithmetic number, because the mean of its divisors is an integer number (199803510).

Almost surely, 2^1265422135 is an apocalyptic number.

1265422135 is a deficient number, since it is larger than the sum of its proper divisors (333005945).

1265422135 is a wasteful number, since it uses less digits than its factorization.

1265422135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13320257.

The product of its digits is 14400, while the sum is 31.

The square root of 1265422135 is about 35572.7723828211. The cubic root of 1265422135 is about 1081.6293806752.

Adding to 1265422135 its reverse (5312245621), we get a palindrome (6577667756).

The spelling of 1265422135 in words is "one billion, two hundred sixty-five million, four hundred twenty-two thousand, one hundred thirty-five".