1265054112 has 336 divisors, whose sum is σ = 4371720192. Its totient is φ = 352719360.

The previous prime is 1265054101. The next prime is 1265054117. The reversal of 1265054112 is 2114505621.

1265054112 is a `hidden beast` number, since 1 + 2 + 650 + 5 + 4 + 1 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1265054117) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 9960993 + ... + 9961119.

It is an arithmetic number, because the mean of its divisors is an integer number (13011072).

Almost surely, 2^1265054112 is an apocalyptic number.

1265054112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1265054112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2185860096).

1265054112 is an abundant number, since it is smaller than the sum of its proper divisors (3106666080).

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

1265054112 is an equidigital number, since it uses as much as digits as its factorization.

1265054112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 200 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 1265054112 is about 35567.5991880250. The cubic root of 1265054112 is about 1081.5245136708.

Adding to 1265054112 its reverse (2114505621), we get a palindrome (3379559733).

The spelling of 1265054112 in words is "one billion, two hundred sixty-five million, fifty-four thousand, one hundred twelve".