1256465 has 8 divisors (see below), whose sum is σ = 1723200. Its totient is φ = 861552.

The previous prime is 1256449. The next prime is 1256477. The reversal of 1256465 is 5646521.

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

It is a cyclic number.

It is not a de Polignac number, because 1256465 - 2⁴ = 1256449 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17915 + ... + 17984.

It is an arithmetic number, because the mean of its divisors is an integer number (215400).

2^1256465 is an apocalyptic number.

It is an amenable number.

1256465 is a deficient number, since it is larger than the sum of its proper divisors (466735).

1256465 is an equidigital number, since it uses as much as digits as its factorization.

1256465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35911.

The product of its digits is 7200, while the sum is 29.

The square root of 1256465 is about 1120.9214959131. The cubic root of 1256465 is about 107.9071275207.

The spelling of 1256465 in words is "one million, two hundred fifty-six thousand, four hundred sixty-five".