1265385 has 16 divisors (see below), whose sum is σ = 2208960. Its totient is φ = 613440.

The previous prime is 1265377. The next prime is 1265387. The reversal of 1265385 is 5835621.

It is not a de Polignac number, because 1265385 - 2³ = 1265377 is a prime.

1265385 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1265387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3670 + ... + 3999.

It is an arithmetic number, because the mean of its divisors is an integer number (138060).

2^1265385 is an apocalyptic number.

1265385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1265385 is a deficient number, since it is larger than the sum of its proper divisors (943575).

1265385 is a wasteful number, since it uses less digits than its factorization.

1265385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7688.

The product of its digits is 7200, while the sum is 30.

The square root of 1265385 is about 1124.8933282761. The cubic root of 1265385 is about 108.1618800095.

The spelling of 1265385 in words is "one million, two hundred sixty-five thousand, three hundred eighty-five".