1139847553 has 8 divisors (see below), whose sum is σ = 1238791400. Its totient is φ = 1042512768.

The previous prime is 1139847551. The next prime is 1139847559. The reversal of 1139847553 is 3557489311.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4359744 + 1135487809 = 2088^2 + 33697^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1139847553 - 2¹ = 1139847551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1139847551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400788 + ... + 403621.

It is an arithmetic number, because the mean of its divisors is an integer number (154848925).

Almost surely, 2^1139847553 is an apocalyptic number.

1139847553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1139847553 is a deficient number, since it is larger than the sum of its proper divisors (98943847).

1139847553 is a wasteful number, since it uses less digits than its factorization.

1139847553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804531.

The product of its digits is 453600, while the sum is 46.

The square root of 1139847553 is about 33761.6284115562. The cubic root of 1139847553 is about 1044.5973595908.

The spelling of 1139847553 in words is "one billion, one hundred thirty-nine million, eight hundred forty-seven thousand, five hundred fifty-three".