1265125068 has 72 divisors (see below), whose sum is σ = 3347103760. Its totient is φ = 417804480.

The previous prime is 1265125067. The next prime is 1265125079. The reversal of 1265125068 is 8605215621.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1265125067) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99978 + ... + 111918.

Almost surely, 2^1265125068 is an apocalyptic number.

1265125068 is a gapful number since it is divisible by the number (18) 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 1265125068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1673551880).

1265125068 is an abundant number, since it is smaller than the sum of its proper divisors (2081978692).

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

1265125068 is a wasteful number, since it uses less digits than its factorization.

1265125068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12069 (or 12055 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 1265125068 is about 35568.5966549146. The cubic root of 1265125068 is about 1081.5447339439.

The spelling of 1265125068 in words is "one billion, two hundred sixty-five million, one hundred twenty-five thousand, sixty-eight".