138750873 has 8 divisors (see below), whose sum is σ = 188491968. Its totient is φ = 90755184.

The previous prime is 138750869. The next prime is 138750893. The reversal of 138750873 is 378057831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 138750873 - 2² = 138750869 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138750803) 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, 436165 + ... + 436482.

It is an arithmetic number, because the mean of its divisors is an integer number (23561496).

Almost surely, 2^138750873 is an apocalyptic number.

It is an amenable number.

138750873 is a deficient number, since it is larger than the sum of its proper divisors (49741095).

138750873 is an equidigital number, since it uses as much as digits as its factorization.

138750873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872703.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 138750873 is about 11779.2560461177. The cubic root of 138750873 is about 517.7004884915.

The spelling of 138750873 in words is "one hundred thirty-eight million, seven hundred fifty thousand, eight hundred seventy-three".