1149490949 has 4 divisors (see below), whose sum is σ = 1151504640. Its totient is φ = 1147477260.

The previous prime is 1149490939. The next prime is 1149490957. The reversal of 1149490949 is 9490949411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1149490949 - 2²⁴ = 1132713733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1149490897 and 1149490906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1149490939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1005989 + ... + 1007130.

It is an arithmetic number, because the mean of its divisors is an integer number (287876160).

Almost surely, 2^1149490949 is an apocalyptic number.

It is an amenable number.

1149490949 is a deficient number, since it is larger than the sum of its proper divisors (2013691).

1149490949 is an equidigital number, since it uses as much as digits as its factorization.

1149490949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2013690.

The product of its (nonzero) digits is 419904, while the sum is 50.

The square root of 1149490949 is about 33904.1435373318. The cubic root of 1149490949 is about 1047.5349427000.

The spelling of 1149490949 in words is "one billion, one hundred forty-nine million, four hundred ninety thousand, nine hundred forty-nine".