101992738 has 4 divisors (see below), whose sum is σ = 152989110. Its totient is φ = 50996368.

The previous prime is 101992727. The next prime is 101992837. The reversal of 101992738 is 837299101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 837299101 = 313 ⋅2675077.

It can be written as a sum of positive squares in only one way, i.e., 96294969 + 5697769 = 9813^2 + 2387^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 101992738.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25498183 + ... + 25498186.

Almost surely, 2^101992738 is an apocalyptic number.

101992738 is a deficient number, since it is larger than the sum of its proper divisors (50996372).

101992738 is an equidigital number, since it uses as much as digits as its factorization.

101992738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50996371.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 101992738 is about 10099.1454093898. The cubic root of 101992738 is about 467.2217841896.

The spelling of 101992738 in words is "one hundred one million, nine hundred ninety-two thousand, seven hundred thirty-eight".