101089138 has 4 divisors (see below), whose sum is σ = 151633710. Its totient is φ = 50544568.

The previous prime is 101089129. The next prime is 101089141. The reversal of 101089138 is 831980101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 78269409 + 22819729 = 8847^2 + 4777^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25272283 + ... + 25272286.

Almost surely, 2^101089138 is an apocalyptic number.

101089138 is a deficient number, since it is larger than the sum of its proper divisors (50544572).

101089138 is an equidigital number, since it uses as much as digits as its factorization.

101089138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50544571.

The product of its (nonzero) digits is 1728, while the sum is 31.

The square root of 101089138 is about 10054.3094243215. The cubic root of 101089138 is about 465.8379126459.

The spelling of 101089138 in words is "one hundred one million, eighty-nine thousand, one hundred thirty-eight".