101720738 has 16 divisors (see below), whose sum is σ = 174508800. Its totient is φ = 43562016.

The previous prime is 101720701. The next prime is 101720767. The reversal of 101720738 is 837027101.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 101720738.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31838 + ... + 34886.

It is an arithmetic number, because the mean of its divisors is an integer number (10906800).

Almost surely, 2^101720738 is an apocalyptic number.

101720738 is a deficient number, since it is larger than the sum of its proper divisors (72788062).

101720738 is a wasteful number, since it uses less digits than its factorization.

101720738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5441.

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 101720738 is about 10085.6699331279. The cubic root of 101720738 is about 466.8060766031.

Adding to 101720738 its reverse (837027101), we get a palindrome (938747839).

The spelling of 101720738 in words is "one hundred one million, seven hundred twenty thousand, seven hundred thirty-eight".