139240003 has 32 divisors (see below), whose sum is σ = 170528768. Its totient is φ = 111196800.

The previous prime is 139240001. The next prime is 139240009. The reversal of 139240003 is 300042931.

It is a cyclic number.

It is not a de Polignac number, because 139240003 - 2¹ = 139240001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139240001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 886801 + ... + 886957.

It is an arithmetic number, because the mean of its divisors is an integer number (5329024).

Almost surely, 2^139240003 is an apocalyptic number.

139240003 is a deficient number, since it is larger than the sum of its proper divisors (31288765).

139240003 is a wasteful number, since it uses less digits than its factorization.

139240003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 139240003 is about 11800.0001271186. Note that the first 3 decimals coincide. The cubic root of 139240003 is about 518.3081143724.

Adding to 139240003 its reverse (300042931), we get a palindrome (439282934).

The spelling of 139240003 in words is "one hundred thirty-nine million, two hundred forty thousand, three".