1149689547 has 12 divisors (see below), whose sum is σ = 1669359744. Its totient is φ = 762445680.

The previous prime is 1149689537. The next prime is 1149689551. The reversal of 1149689547 is 7459869411.

1149689547 is a `hidden beast` number, since 1 + 1 + 4 + 96 + 8 + 9 + 547 = 666.

1149689547 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1149689547 - 2¹⁶ = 1149624011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1149689493 and 1149689502.

It is not an unprimeable number, because it can be changed into a prime (1149689507) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 332688 + ... + 336125.

It is an arithmetic number, because the mean of its divisors is an integer number (139113312).

Almost surely, 2^1149689547 is an apocalyptic number.

1149689547 is a deficient number, since it is larger than the sum of its proper divisors (519670197).

1149689547 is a wasteful number, since it uses less digits than its factorization.

1149689547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669010 (or 669007 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The square root of 1149689547 is about 33907.0722268969. The cubic root of 1149689547 is about 1047.5952668997.

The spelling of 1149689547 in words is "one billion, one hundred forty-nine million, six hundred eighty-nine thousand, five hundred forty-seven".