139894503 has 8 divisors (see below), whose sum is σ = 213172608. Its totient is φ = 79939704.

The previous prime is 139894483. The next prime is 139894529. The reversal of 139894503 is 305498931.

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

It is not a de Polignac number, because 139894503 - 2⁹ = 139893991 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139894553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3330801 + ... + 3330842.

It is an arithmetic number, because the mean of its divisors is an integer number (26646576).

Almost surely, 2^139894503 is an apocalyptic number.

139894503 is a deficient number, since it is larger than the sum of its proper divisors (73278105).

139894503 is an equidigital number, since it uses as much as digits as its factorization.

139894503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6661653.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 139894503 is about 11827.7006641190. The cubic root of 139894503 is about 519.1189506127.

The spelling of 139894503 in words is "one hundred thirty-nine million, eight hundred ninety-four thousand, five hundred three".