138801106 has 4 divisors (see below), whose sum is σ = 208201662. Its totient is φ = 69400552.

The previous prime is 138801101. The next prime is 138801109. The reversal of 138801106 is 601108831.

It is a happy number.

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., 125776225 + 13024881 = 11215^2 + 3609^2 .

It is not an unprimeable number, because it can be changed into a prime (138801101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34700275 + ... + 34700278.

Almost surely, 2^138801106 is an apocalyptic number.

138801106 is a deficient number, since it is larger than the sum of its proper divisors (69400556).

138801106 is an equidigital number, since it uses as much as digits as its factorization.

138801106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69400555.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 138801106 is about 11781.3881185538. The cubic root of 138801106 is about 517.7629565932.

Adding to 138801106 its reverse (601108831), we get a palindrome (739909937).

The spelling of 138801106 in words is "one hundred thirty-eight million, eight hundred one thousand, one hundred six".