1073840139 has 64 divisors (see below), whose sum is σ = 1733114880. Its totient is φ = 654635520.

The previous prime is 1073840137. The next prime is 1073840167. The reversal of 1073840139 is 9310483701.

It is a happy number.

It is not a de Polignac number, because 1073840139 - 2¹ = 1073840137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1073840137) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2704689 + ... + 2705085.

It is an arithmetic number, because the mean of its divisors is an integer number (27079920).

Almost surely, 2^1073840139 is an apocalyptic number.

1073840139 is a deficient number, since it is larger than the sum of its proper divisors (659274741).

1073840139 is a wasteful number, since it uses less digits than its factorization.

1073840139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577 (or 571 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 1073840139 is about 32769.5001335083. The cubic root of 1073840139 is about 1024.0312525430.

The spelling of 1073840139 in words is "one billion, seventy-three million, eight hundred forty thousand, one hundred thirty-nine".