1265013 has 6 divisors (see below), whose sum is σ = 1827254. Its totient is φ = 843336.

The previous prime is 1264997. The next prime is 1265029. The reversal of 1265013 is 3105621.

1265013 is a `hidden beast` number, since 1 + 2 + 650 + 13 = 666.

It is an interprime number because it is at equal distance from previous prime (1264997) and next prime (1265029).

It can be written as a sum of positive squares in only one way, i.e., 1238769 + 26244 = 1113^2 + 162^2 .

It is not a de Polignac number, because 1265013 - 2⁴ = 1264997 is a prime.

It is an Ulam number.

It is a Duffinian number.

1265013 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1265053) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70270 + ... + 70287.

2^1265013 is an apocalyptic number.

It is an amenable number.

1265013 is a deficient number, since it is larger than the sum of its proper divisors (562241).

1265013 is a wasteful number, since it uses less digits than its factorization.

1265013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140563 (or 140560 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1265013 is about 1124.7279671103. The cubic root of 1265013 is about 108.1512797672.

It can be divided in two parts, 12 and 65013, that added together give a square (65025 = 255²).

The spelling of 1265013 in words is "one million, two hundred sixty-five thousand, thirteen".