1225207 has 8 divisors (see below), whose sum is σ = 1312416. Its totient is φ = 1139712.

The previous prime is 1225183. The next prime is 1225219. The reversal of 1225207 is 7025221.

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 1225207 - 2⁷ = 1225079 is a prime.

It is a super-2 number, since 2×1225207² = 3002264385698, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1278 + ... + 2020.

It is an arithmetic number, because the mean of its divisors is an integer number (164052).

2^1225207 is an apocalyptic number.

1225207 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1225207 is a deficient number, since it is larger than the sum of its proper divisors (87209).

1225207 is an equidigital number, since it uses as much as digits as its factorization.

1225207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 1225207 is about 1106.8906901768. The cubic root of 1225207 is about 107.0047745853.

It can be divided in two parts, 122 and 5207, that added together give a square (5329 = 73²).

The spelling of 1225207 in words is "one million, two hundred twenty-five thousand, two hundred seven".