747106139 has 8 divisors (see below), whose sum is σ = 813617280. Its totient is φ = 681886656.

The previous prime is 747106117. The next prime is 747106181. The reversal of 747106139 is 931601747.

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

It is a cyclic number.

It is not a de Polignac number, because 747106139 - 2¹⁶ = 747040603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (747106739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321707 + ... + 324020.

It is an arithmetic number, because the mean of its divisors is an integer number (101702160).

Almost surely, 2^747106139 is an apocalyptic number.

747106139 is a deficient number, since it is larger than the sum of its proper divisors (66511141).

747106139 is a wasteful number, since it uses less digits than its factorization.

747106139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645829.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 747106139 is about 27333.2423799300. The cubic root of 747106139 is about 907.3902359231.

The spelling of 747106139 in words is "seven hundred forty-seven million, one hundred six thousand, one hundred thirty-nine".