1155670547 has 4 divisors (see below), whose sum is σ = 1155772080. Its totient is φ = 1155569016.

The previous prime is 1155670541. The next prime is 1155670589. The reversal of 1155670547 is 7450765511.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1155670547 - 2¹⁴ = 1155654163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1155670541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31172 + ... + 57297.

It is an arithmetic number, because the mean of its divisors is an integer number (288943020).

Almost surely, 2^1155670547 is an apocalyptic number.

1155670547 is a deficient number, since it is larger than the sum of its proper divisors (101533).

1155670547 is an equidigital number, since it uses as much as digits as its factorization.

1155670547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101532.

The product of its (nonzero) digits is 147000, while the sum is 41.

The square root of 1155670547 is about 33995.1547577004. The cubic root of 1155670547 is about 1049.4087516392.

The spelling of 1155670547 in words is "one billion, one hundred fifty-five million, six hundred seventy thousand, five hundred forty-seven".