1172245 has 8 divisors (see below), whose sum is σ = 1421784. Its totient is φ = 927744.

The previous prime is 1172233. The next prime is 1172257. The reversal of 1172245 is 5422711.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1172233) and next prime (1172257).

It can be written as a sum of positive squares in 4 ways, for example, as 381924 + 790321 = 618^2 + 889^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1172245 is a prime.

It is a Duffinian number.

1172245 is a lucky number.

It is a congruent number.

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, 724 + ... + 1693.

It is an arithmetic number, because the mean of its divisors is an integer number (177723).

2^1172245 is an apocalyptic number.

It is an amenable number.

1172245 is a deficient number, since it is larger than the sum of its proper divisors (249539).

1172245 is an equidigital number, since it uses as much as digits as its factorization.

1172245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2519.

The product of its digits is 560, while the sum is 22.

The square root of 1172245 is about 1082.7026369230. The cubic root of 1172245 is about 105.4401778204.

Adding to 1172245 its reverse (5422711), we get a palindrome (6594956).

The spelling of 1172245 in words is "one million, one hundred seventy-two thousand, two hundred forty-five".