1603040138 has 8 divisors (see below), whose sum is σ = 2748068832. Its totient is φ = 687017196.

The previous prime is 1603040123. The next prime is 1603040141. The reversal of 1603040138 is 8310403061.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57251420 + ... + 57251447.

It is an arithmetic number, because the mean of its divisors is an integer number (343508604).

Almost surely, 2^1603040138 is an apocalyptic number.

1603040138 is a deficient number, since it is larger than the sum of its proper divisors (1145028694).

1603040138 is a wasteful number, since it uses less digits than its factorization.

1603040138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114502876.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1603040138 is about 40037.9836904907. The cubic root of 1603040138 is about 1170.3474113813.

Adding to 1603040138 its reverse (8310403061), we get a palindrome (9913443199).

The spelling of 1603040138 in words is "one billion, six hundred three million, forty thousand, one hundred thirty-eight".