728142051 has 16 divisors (see below), whose sum is σ = 1194900224. Its totient is φ = 384074784.

The previous prime is 728142047. The next prime is 728142089. The reversal of 728142051 is 150241827.

728142051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 728142051 - 2² = 728142047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (728142031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1333321 + ... + 1333866.

It is an arithmetic number, because the mean of its divisors is an integer number (74681264).

Almost surely, 2^728142051 is an apocalyptic number.

728142051 is a deficient number, since it is larger than the sum of its proper divisors (466758173).

728142051 is a wasteful number, since it uses less digits than its factorization.

728142051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2667210.

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 728142051 is about 26984.1073782328. The cubic root of 728142051 is about 899.6467959715.

Adding to 728142051 its reverse (150241827), we get a palindrome (878383878).

The spelling of 728142051 in words is "seven hundred twenty-eight million, one hundred forty-two thousand, fifty-one".