1081438347 has 48 divisors (see below), whose sum is σ = 1644177920. Its totient is φ = 631350720.

The previous prime is 1081438321. The next prime is 1081438361. The reversal of 1081438347 is 7438341801.

It is not a de Polignac number, because 1081438347 - 2¹² = 1081434251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1081438367) 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 47 ways as a sum of consecutive naturals, for example, 1232673 + ... + 1233549.

Almost surely, 2^1081438347 is an apocalyptic number.

1081438347 is a deficient number, since it is larger than the sum of its proper divisors (562739573).

1081438347 is a wasteful number, since it uses less digits than its factorization.

1081438347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024 (or 1013 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 1081438347 is about 32885.2299216533. The cubic root of 1081438347 is about 1026.4408360998.

The spelling of 1081438347 in words is "one billion, eighty-one million, four hundred thirty-eight thousand, three hundred forty-seven".