1265648 has 10 divisors (see below), whose sum is σ = 2452224. Its totient is φ = 632816.

The previous prime is 1265639. The next prime is 1265653. The reversal of 1265648 is 8465621.

1265648 = T₁₁₂ + T₁₁₃ + ... + T₂₀₇.

It is a super-3 number, since 3×1265648³ = 6082191168623333376, which contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39536 + ... + 39567.

2^1265648 is an apocalyptic number.

It is an amenable number.

1265648 is a deficient number, since it is larger than the sum of its proper divisors (1186576).

1265648 is an equidigital number, since it uses as much as digits as its factorization.

1265648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79111 (or 79105 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 1265648 is about 1125.0102221758. The cubic root of 1265648 is about 108.1693730133.

The spelling of 1265648 in words is "one million, two hundred sixty-five thousand, six hundred forty-eight".