3875305138 has 4 divisors (see below), whose sum is σ = 5812957710. Its totient is φ = 1937652568.

The previous prime is 3875305129. The next prime is 3875305141. The reversal of 3875305138 is 8315035783.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8315035783 = 73363 ⋅113341.

It can be written as a sum of positive squares in only one way, i.e., 3147546609 + 727758529 = 56103^2 + 26977^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3875305094 and 3875305103.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 968826283 + ... + 968826286.

Almost surely, 2^3875305138 is an apocalyptic number.

3875305138 is a deficient number, since it is larger than the sum of its proper divisors (1937652572).

3875305138 is a wasteful number, since it uses less digits than its factorization.

3875305138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1937652571.

The product of its (nonzero) digits is 302400, while the sum is 43.

The square root of 3875305138 is about 62251.9488690916. The cubic root of 3875305138 is about 1570.7315532688.

The spelling of 3875305138 in words is "three billion, eight hundred seventy-five million, three hundred five thousand, one hundred thirty-eight".