1157449 has 2 divisors, whose sum is σ = 1157450. Its totient is φ = 1157448.

The previous prime is 1157437. The next prime is 1157489. The reversal of 1157449 is 9447511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 797449 + 360000 = 893^2 + 600^2 .

It is an emirp because it is prime and its reverse (9447511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1157449 - 2¹⁵ = 1124681 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1157449.

It is not a weakly prime, because it can be changed into another prime (1157489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578724 + 578725.

It is an arithmetic number, because the mean of its divisors is an integer number (578725).

2^1157449 is an apocalyptic number.

It is an amenable number.

1157449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1157449 is an equidigital number, since it uses as much as digits as its factorization.

1157449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 31.

The square root of 1157449 is about 1075.8480375964. The cubic root of 1157449 is about 104.9946784907.

The spelling of 1157449 in words is "one million, one hundred fifty-seven thousand, four hundred forty-nine".