138374035 has 4 divisors (see below), whose sum is σ = 166048848. Its totient is φ = 110699224.

The previous prime is 138374021. The next prime is 138374081. The reversal of 138374035 is 530473831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 530473831 = 17 ⋅31204343.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138374035 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13837399 + ... + 13837408.

It is an arithmetic number, because the mean of its divisors is an integer number (41512212).

Almost surely, 2^138374035 is an apocalyptic number.

138374035 is a deficient number, since it is larger than the sum of its proper divisors (27674813).

138374035 is an equidigital number, since it uses as much as digits as its factorization.

138374035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27674812.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 138374035 is about 11763.2493385119. The cubic root of 138374035 is about 517.2313836952.

The spelling of 138374035 in words is "one hundred thirty-eight million, three hundred seventy-four thousand, thirty-five".