1149261039 has 12 divisors (see below), whose sum is σ = 1717287000. Its totient is φ = 739754064.

The previous prime is 1149261031. The next prime is 1149261053. The reversal of 1149261039 is 9301629411.

It is a happy number.

1149261039 is a `hidden beast` number, since 1 + 1 + 4 + 9 + 2 + 610 + 39 = 666.

It is not a de Polignac number, because 1149261039 - 2³ = 1149261031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1149260994 and 1149261012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1149261031) 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 11 ways as a sum of consecutive naturals, for example, 2201389 + ... + 2201910.

It is an arithmetic number, because the mean of its divisors is an integer number (143107250).

Almost surely, 2^1149261039 is an apocalyptic number.

1149261039 is a deficient number, since it is larger than the sum of its proper divisors (568025961).

1149261039 is a wasteful number, since it uses less digits than its factorization.

1149261039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4403334 (or 4403331 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 1149261039 is about 33900.7527792526. The cubic root of 1149261039 is about 1047.4650987929.

The spelling of 1149261039 in words is "one billion, one hundred forty-nine million, two hundred sixty-one thousand, thirty-nine".