1151245 has 8 divisors (see below), whose sum is σ = 1389816. Its totient is φ = 915456.

The previous prime is 1151243. The next prime is 1151251. The reversal of 1151245 is 5421511.

It can be written as a sum of positive squares in 4 ways, for example, as 42436 + 1108809 = 206^2 + 1053^2 .

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 1151245 - 2¹ = 1151243 is a prime.

It is a Duffinian number.

1151245 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369 + ... + 1561.

It is an arithmetic number, because the mean of its divisors is an integer number (173727).

2^1151245 is an apocalyptic number.

It is an amenable number.

1151245 is a deficient number, since it is larger than the sum of its proper divisors (238571).

1151245 is a wasteful number, since it uses less digits than its factorization.

1151245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391.

The product of its digits is 200, while the sum is 19.

The square root of 1151245 is about 1072.9608566952. The cubic root of 1151245 is about 104.8067496090.

Adding to 1151245 its reverse (5421511), we get a palindrome (6572756).

The spelling of 1151245 in words is "one million, one hundred fifty-one thousand, two hundred forty-five".