1265994 has 24 divisors (see below), whose sum is σ = 2790372. Its totient is φ = 414720.

The previous prime is 1265993. The next prime is 1266019. The reversal of 1265994 is 4995621.

It can be written as a sum of positive squares in 2 ways, for example, as 1238769 + 27225 = 1113^2 + 165^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1265993) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 522 + ... + 1674.

2^1265994 is an apocalyptic number.

1265994 is an abundant number, since it is smaller than the sum of its proper divisors (1524378).

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

1265994 is a wasteful number, since it uses less digits than its factorization.

1265994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222 (or 1219 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 1265994 is about 1125.1639880480. The cubic root of 1265994 is about 108.1792291484.

The spelling of 1265994 in words is "one million, two hundred sixty-five thousand, nine hundred ninety-four".