1265469725 has 12 divisors (see below), whose sum is σ = 1689889236. Its totient is φ = 934500480.

The previous prime is 1265469713. The next prime is 1265469763. The reversal of 1265469725 is 5279645621.

It can be written as a sum of positive squares in 6 ways, for example, as 1951609 + 1263518116 = 1397^2 + 35546^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1265469725 is a prime.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1265469725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1946552 + ... + 1947201.

It is an arithmetic number, because the mean of its divisors is an integer number (140824103).

Almost surely, 2^1265469725 is an apocalyptic number.

It is an amenable number.

1265469725 is a deficient number, since it is larger than the sum of its proper divisors (424419511).

1265469725 is a wasteful number, since it uses less digits than its factorization.

1265469725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3893776 (or 3893771 counting only the distinct ones).

The product of its digits is 907200, while the sum is 47.

The square root of 1265469725 is about 35573.4412870051. The cubic root of 1265469725 is about 1081.6429398123.

The spelling of 1265469725 in words is "one billion, two hundred sixty-five million, four hundred sixty-nine thousand, seven hundred twenty-five".