138051250 has 20 divisors (see below), whose sum is σ = 258765606. Its totient is φ = 55220000.

The previous prime is 138051239. The next prime is 138051253. The reversal of 138051250 is 52150831.

It is a happy number.

138051250 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 622521 + 137428729 = 789^2 + 11723^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (138051253) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 53971 + ... + 56470.

Almost surely, 2^138051250 is an apocalyptic number.

138051250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138051250 is a deficient number, since it is larger than the sum of its proper divisors (120714356).

138051250 is an equidigital number, since it uses as much as digits as its factorization.

138051250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110463 (or 110448 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 138051250 is about 11749.5212668432. The cubic root of 138051250 is about 516.8288888222.

The spelling of 138051250 in words is "one hundred thirty-eight million, fifty-one thousand, two hundred fifty".