1265895452 has 24 divisors (see below), whose sum is σ = 2225664000. Its totient is φ = 630000176.

The previous prime is 1265895451. The next prime is 1265895457. The reversal of 1265895452 is 2545985621.

It is a junction number, because it is equal to n+sod(n) for n = 1265895397 and 1265895406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1265895451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1147133 + ... + 1148235.

It is an arithmetic number, because the mean of its divisors is an integer number (92736000).

Almost surely, 2^1265895452 is an apocalyptic number.

It is an amenable number.

1265895452 is a deficient number, since it is larger than the sum of its proper divisors (959768548).

1265895452 is a wasteful number, since it uses less digits than its factorization.

1265895452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2185 (or 2183 counting only the distinct ones).

The product of its digits is 864000, while the sum is 47.

The square root of 1265895452 is about 35579.4245597087. The cubic root of 1265895452 is about 1081.7642209898.

The spelling of 1265895452 in words is "one billion, two hundred sixty-five million, eight hundred ninety-five thousand, four hundred fifty-two".