138771358 has 16 divisors (see below), whose sum is σ = 228532464. Its totient is φ = 62674560.

The previous prime is 138771343. The next prime is 138771359. The reversal of 138771358 is 853177831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138771359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16635 + ... + 23542.

It is an arithmetic number, because the mean of its divisors is an integer number (14283279).

Almost surely, 2^138771358 is an apocalyptic number.

138771358 is a deficient number, since it is larger than the sum of its proper divisors (89761106).

138771358 is a wasteful number, since it uses less digits than its factorization.

138771358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40347.

The product of its digits is 141120, while the sum is 43.

The square root of 138771358 is about 11780.1255511136. The cubic root of 138771358 is about 517.7259647820.

It can be divided in two parts, 138771 and 358, that added together give a square (139129 = 373²).

The spelling of 138771358 in words is "one hundred thirty-eight million, seven hundred seventy-one thousand, three hundred fifty-eight".