1139132547 has 36 divisors (see below), whose sum is σ = 1931075640. Its totient is φ = 645144192.

The previous prime is 1139132543. The next prime is 1139132563. The reversal of 1139132547 is 7452319311.

1139132547 is a `hidden beast` number, since 11 + 391 + 3 + 254 + 7 = 666.

It is not a de Polignac number, because 1139132547 - 2² = 1139132543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1139132543) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 38404 + ... + 61262.

It is an arithmetic number, because the mean of its divisors is an integer number (53640990).

Almost surely, 2^1139132547 is an apocalyptic number.

1139132547 is a deficient number, since it is larger than the sum of its proper divisors (791943093).

1139132547 is a wasteful number, since it uses less digits than its factorization.

1139132547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22992 (or 22982 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 1139132547 is about 33751.0377173799. The cubic root of 1139132547 is about 1044.3788948194.

The spelling of 1139132547 in words is "one billion, one hundred thirty-nine million, one hundred thirty-two thousand, five hundred forty-seven".