1295021 has 24 divisors (see below), whose sum is σ = 1723680. Its totient is φ = 961632.

The previous prime is 1295003. The next prime is 1295027. The reversal of 1295021 is 1205921.

1295021 is nontrivially palindromic in base 12.

It is not a de Polignac number, because 1295021 - 2⁶ = 1294957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1294984 and 1295002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1295027) 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 23 ways as a sum of consecutive naturals, for example, 12050 + ... + 12156.

It is an arithmetic number, because the mean of its divisors is an integer number (71820).

2^1295021 is an apocalyptic number.

It is an amenable number.

1295021 is a deficient number, since it is larger than the sum of its proper divisors (428659).

1295021 is a wasteful number, since it uses less digits than its factorization.

1295021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 1295021 is about 1137.9898945070. The cubic root of 1295021 is about 108.9997755515. Note that the first 3 decimals are identical.

The spelling of 1295021 in words is "one million, two hundred ninety-five thousand, twenty-one".