138326250 has 40 divisors (see below), whose sum is σ = 345714336. Its totient is φ = 36886000.

The previous prime is 138326233. The next prime is 138326273. The reversal of 138326250 is 52623831.

138326250 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14694 + ... + 22193.

Almost surely, 2^138326250 is an apocalyptic number.

138326250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138326250 is an abundant number, since it is smaller than the sum of its proper divisors (207388086).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138326250 is an equidigital number, since it uses as much as digits as its factorization.

138326250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36912 (or 36897 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 138326250 is about 11761.2180491648. The cubic root of 138326250 is about 517.1718379688.

The spelling of 138326250 in words is "one hundred thirty-eight million, three hundred twenty-six thousand, two hundred fifty".