728101139 has 2 divisors, whose sum is σ = 728101140. Its totient is φ = 728101138.

The previous prime is 728101117. The next prime is 728101163. The reversal of 728101139 is 931101827.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 728101139 - 2¹⁶ = 728035603 is a prime.

It is a super-3 number, since 3×728101139³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (728101189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364050569 + 364050570.

It is an arithmetic number, because the mean of its divisors is an integer number (364050570).

Almost surely, 2^728101139 is an apocalyptic number.

728101139 is a deficient number, since it is larger than the sum of its proper divisors (1).

728101139 is an equidigital number, since it uses as much as digits as its factorization.

728101139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 728101139 is about 26983.3492917392. The cubic root of 728101139 is about 899.6299462194.

The spelling of 728101139 in words is "seven hundred twenty-eight million, one hundred one thousand, one hundred thirty-nine".