1265225300 has 18 divisors (see below), whose sum is σ = 2745539118. Its totient is φ = 506090080.

The previous prime is 1265225287. The next prime is 1265225321. The reversal of 1265225300 is 35225621.

It can be written as a sum of positive squares in 3 ways, for example, as 454798276 + 810427024 = 21326^2 + 28468^2 .

It is a super-3 number, since 3×1265225300³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1265225300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6326027 + ... + 6326226.

It is an arithmetic number, because the mean of its divisors is an integer number (152529951).

Almost surely, 2^1265225300 is an apocalyptic number.

1265225300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1265225300 is an abundant number, since it is smaller than the sum of its proper divisors (1480313818).

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

1265225300 is a wasteful number, since it uses less digits than its factorization.

1265225300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12652267 (or 12652260 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1265225300 is about 35570.0056227153. The cubic root of 1265225300 is about 1081.5732956863.

The spelling of 1265225300 in words is "one billion, two hundred sixty-five million, two hundred twenty-five thousand, three hundred".