1149141156 has 12 divisors (see below), whose sum is σ = 2681329392. Its totient is φ = 383047048.

The previous prime is 1149141151. The next prime is 1149141179. The reversal of 1149141156 is 6511419411.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1149141151) 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, 47880870 + ... + 47880893.

It is an arithmetic number, because the mean of its divisors is an integer number (223444116).

Almost surely, 2^1149141156 is an apocalyptic number.

It is an amenable number.

1149141156 is an abundant number, since it is smaller than the sum of its proper divisors (1532188236).

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

1149141156 is a wasteful number, since it uses less digits than its factorization.

1149141156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95761770 (or 95761768 counting only the distinct ones).

The product of its digits is 4320, while the sum is 33.

The square root of 1149141156 is about 33898.9845865625. The cubic root of 1149141156 is about 1047.4286760770.

The spelling of 1149141156 in words is "one billion, one hundred forty-nine million, one hundred forty-one thousand, one hundred fifty-six".