1182148949 has 4 divisors (see below), whose sum is σ = 1182229164. Its totient is φ = 1182068736.

The previous prime is 1182148939. The next prime is 1182148967. The reversal of 1182148949 is 9498412811.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9498412811 = 17203 ⋅552137.

It can be written as a sum of positive squares in 2 ways, for example, as 826562500 + 355586449 = 28750^2 + 18857^2 .

It is a cyclic number.

It is not a de Polignac number, because 1182148949 - 2¹² = 1182144853 is a prime.

It is a super-2 number, since 2×1182148949² = 2794952275243609202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1182148939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10922 + ... + 49835.

It is an arithmetic number, because the mean of its divisors is an integer number (295557291).

Almost surely, 2^1182148949 is an apocalyptic number.

It is an amenable number.

1182148949 is a deficient number, since it is larger than the sum of its proper divisors (80215).

1182148949 is an equidigital number, since it uses as much as digits as its factorization.

1182148949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80214.

The product of its digits is 165888, while the sum is 47.

The square root of 1182148949 is about 34382.3930086316. The cubic root of 1182148949 is about 1057.3628968267.

The spelling of 1182148949 in words is "one billion, one hundred eighty-two million, one hundred forty-eight thousand, nine hundred forty-nine".