1149105140 has 24 divisors (see below), whose sum is σ = 2555069832. Its totient is φ = 432604160.

The previous prime is 1149105103. The next prime is 1149105143. The reversal of 1149105140 is 415019411.

It can be written as a sum of positive squares in 4 ways, for example, as 290497936 + 858607204 = 17044^2 + 29302^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1149105143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1689521 + ... + 1690200.

It is an arithmetic number, because the mean of its divisors is an integer number (106461243).

Almost surely, 2^1149105140 is an apocalyptic number.

1149105140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1149105140 is an abundant number, since it is smaller than the sum of its proper divisors (1405964692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1149105140 is a wasteful number, since it uses less digits than its factorization.

1149105140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3379747 (or 3379745 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 1149105140 is about 33898.4533570486. The cubic root of 1149105140 is about 1047.4177332423.

The spelling of 1149105140 in words is "one billion, one hundred forty-nine million, one hundred five thousand, one hundred forty".