1225465 has 8 divisors (see below), whose sum is σ = 1482120. Its totient is φ = 972672.

The previous prime is 1225459. The next prime is 1225493. The reversal of 1225465 is 5645221.

It can be written as a sum of positive squares in 4 ways, for example, as 436921 + 788544 = 661^2 + 888^2 .

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 1225465 - 2⁹ = 1224953 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, 210 + ... + 1579.

It is an arithmetic number, because the mean of its divisors is an integer number (185265).

2^1225465 is an apocalyptic number.

It is an amenable number.

1225465 is a deficient number, since it is larger than the sum of its proper divisors (256655).

1225465 is a wasteful number, since it uses less digits than its factorization.

1225465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1931.

The product of its digits is 2400, while the sum is 25.

The square root of 1225465 is about 1107.0072267153. The cubic root of 1225465 is about 107.0122849609.

The spelling of 1225465 in words is "one million, two hundred twenty-five thousand, four hundred sixty-five".