1317225 has 48 divisors (see below), whose sum is σ = 2694272. Its totient is φ = 552960.

The previous prime is 1317223. The next prime is 1317227. The reversal of 1317225 is 5227131.

It is an interprime number because it is at equal distance from previous prime (1317223) and next prime (1317227).

It is not a de Polignac number, because 1317225 - 2¹ = 1317223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1317223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6729 + ... + 6921.

2^1317225 is an apocalyptic number.

1317225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1317225 is an abundant number, since it is smaller than the sum of its proper divisors (1377047).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1317225 is a wasteful number, since it uses less digits than its factorization.

1317225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 221 counting only the distinct ones).

The product of its digits is 420, while the sum is 21.

The square root of 1317225 is about 1147.7042301917. The cubic root of 1317225 is about 109.6192067233.

The spelling of 1317225 in words is "one million, three hundred seventeen thousand, two hundred twenty-five".