4651172139 has 4 divisors (see below), whose sum is σ = 6201562856. Its totient is φ = 3100781424.

The previous prime is 4651172111. The next prime is 4651172219. The reversal of 4651172139 is 9312711564.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4651172139 - 2⁵ = 4651172107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4651172097 and 4651172106.

It is not an unprimeable number, because it can be changed into a prime (4651172839) 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, 775195354 + ... + 775195359.

It is an arithmetic number, because the mean of its divisors is an integer number (1550390714).

Almost surely, 2^4651172139 is an apocalyptic number.

4651172139 is a deficient number, since it is larger than the sum of its proper divisors (1550390717).

4651172139 is a wasteful number, since it uses less digits than its factorization.

4651172139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1550390716.

The product of its digits is 45360, while the sum is 39.

The square root of 4651172139 is about 68199.5024835226. The cubic root of 4651172139 is about 1669.2477684757.

The spelling of 4651172139 in words is "four billion, six hundred fifty-one million, one hundred seventy-two thousand, one hundred thirty-nine".