1265364 has 18 divisors (see below), whose sum is σ = 3198650. Its totient is φ = 421776.

The previous prime is 1265353. The next prime is 1265377. The reversal of 1265364 is 4635621.

1265364 is a `hidden beast` number, since 1 + 2 + 653 + 6 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1192464 + 72900 = 1092^2 + 270^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×1265364² = 3202292104992, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17539 + ... + 17610.

2^1265364 is an apocalyptic number.

It is an amenable number.

1265364 is an abundant number, since it is smaller than the sum of its proper divisors (1933286).

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

1265364 is a wasteful number, since it uses less digits than its factorization.

1265364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35159 (or 35154 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 1265364 is about 1124.8839940189. The cubic root of 1265364 is about 108.1612816641.

The spelling of 1265364 in words is "one million, two hundred sixty-five thousand, three hundred sixty-four".