1265435262 has 96 divisors (see below), whose sum is σ = 3408350400. Its totient is φ = 330393600.

The previous prime is 1265435257. The next prime is 1265435263. The reversal of 1265435262 is 2625345621.

1265435262 is a `hidden beast` number, since 1 + 2 + 6 + 543 + 52 + 62 = 666.

1265435262 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1265435263) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 161614 + ... + 169262.

It is an arithmetic number, because the mean of its divisors is an integer number (35503650).

Almost surely, 2^1265435262 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1265435262, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1704175200).

1265435262 is an abundant number, since it is smaller than the sum of its proper divisors (2142915138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1265435262 is a wasteful number, since it uses less digits than its factorization.

1265435262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7778 (or 7775 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 1265435262 is about 35572.9568914365. The cubic root of 1265435262 is about 1081.6331207972.

The spelling of 1265435262 in words is "one billion, two hundred sixty-five million, four hundred thirty-five thousand, two hundred sixty-two".