138583707 has 4 divisors (see below), whose sum is σ = 184778280. Its totient is φ = 92389136.

The previous prime is 138583703. The next prime is 138583729. The reversal of 138583707 is 707385831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 707385831 = 3 ⋅235795277.

It is a cyclic number.

It is not a de Polignac number, because 138583707 - 2² = 138583703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138583703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23097282 + ... + 23097287.

It is an arithmetic number, because the mean of its divisors is an integer number (46194570).

Almost surely, 2^138583707 is an apocalyptic number.

138583707 is a deficient number, since it is larger than the sum of its proper divisors (46194573).

138583707 is an equidigital number, since it uses as much as digits as its factorization.

138583707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46194572.

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

The square root of 138583707 is about 11772.1581283977. The cubic root of 138583707 is about 517.4924977325.

The spelling of 138583707 in words is "one hundred thirty-eight million, five hundred eighty-three thousand, seven hundred seven".