139600003 has 4 divisors (see below), whose sum is σ = 140209840. Its totient is φ = 138990168.

The previous prime is 139599931. The next prime is 139600009. The reversal of 139600003 is 300006931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 300006931 = 7 ⋅42858133.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139600003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139600009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304575 + ... + 305032.

It is an arithmetic number, because the mean of its divisors is an integer number (35052460).

Almost surely, 2^139600003 is an apocalyptic number.

139600003 is a deficient number, since it is larger than the sum of its proper divisors (609837).

139600003 is an equidigital number, since it uses as much as digits as its factorization.

139600003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609836.

The product of its (nonzero) digits is 486, while the sum is 22.

The square root of 139600003 is about 11815.2445171482. The cubic root of 139600003 is about 518.7544189298.

Adding to 139600003 its reverse (300006931), we get a palindrome (439606934).

The spelling of 139600003 in words is "one hundred thirty-nine million, six hundred thousand, three".