1265001 has 8 divisors (see below), whose sum is σ = 1775520. Its totient is φ = 798912.

The previous prime is 1264997. The next prime is 1265029. The reversal of 1265001 is 1005621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1265001 - 2² = 1264997 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 11040 + ... + 11153.

It is an arithmetic number, because the mean of its divisors is an integer number (221940).

2^1265001 is an apocalyptic number.

It is an amenable number.

1265001 is a deficient number, since it is larger than the sum of its proper divisors (510519).

1265001 is a wasteful number, since it uses less digits than its factorization.

1265001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22215.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 1265001 is about 1124.7226324743. The cubic root of 1265001 is about 108.1509377893.

The spelling of 1265001 in words is "one million, two hundred sixty-five thousand, one".