1117245 has 16 divisors (see below), whose sum is σ = 1801152. Its totient is φ = 591360.

The previous prime is 1117243. The next prime is 1117247. The reversal of 1117245 is 5427111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1117243) and next prime (1117247).

It is not a de Polignac number, because 1117245 - 2¹ = 1117243 is a prime.

1117245 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2989 + ... + 3341.

It is an arithmetic number, because the mean of its divisors is an integer number (112572).

2^1117245 is an apocalyptic number.

1117245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1117245 is a deficient number, since it is larger than the sum of its proper divisors (683907).

1117245 is a wasteful number, since it uses less digits than its factorization.

1117245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572.

The product of its digits is 280, while the sum is 21.

The square root of 1117245 is about 1056.9981078507. The cubic root of 1117245 is about 103.7646614012.

The spelling of 1117245 in words is "one million, one hundred seventeen thousand, two hundred forty-five".