1265045 has 6 divisors (see below), whose sum is σ = 1521078. Its totient is φ = 1010024.

The previous prime is 1265041. The next prime is 1265051. The reversal of 1265045 is 5405621.

It can be written as a sum of positive squares in only one way, i.e., 1012036 + 253009 = 1006^2 + 503^2 .

It is not a de Polignac number, because 1265045 - 2² = 1265041 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1265045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1265041) by changing a digit.

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, 2264 + ... + 2766.

It is an arithmetic number, because the mean of its divisors is an integer number (253513).

2^1265045 is an apocalyptic number.

It is an amenable number.

1265045 is a deficient number, since it is larger than the sum of its proper divisors (256033).

1265045 is an frugal number, since it uses more digits than its factorization.

1265045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1265045 is about 1124.7421926824. The cubic root of 1265045 is about 108.1521916977.

The spelling of 1265045 in words is "one million, two hundred sixty-five thousand, forty-five".