8139250275 has 48 divisors (see below), whose sum is σ = 14544839904. Its totient is φ = 3992417280.

The previous prime is 8139250271. The next prime is 8139250277. The reversal of 8139250275 is 5720529318.

It is a happy number.

It is not a de Polignac number, because 8139250275 - 2² = 8139250271 is a prime.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (8139250271) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 255007 + ... + 285143.

It is an arithmetic number, because the mean of its divisors is an integer number (303017498).

Almost surely, 2^8139250275 is an apocalyptic number.

8139250275 is a deficient number, since it is larger than the sum of its proper divisors (6405589629).

8139250275 is a wasteful number, since it uses less digits than its factorization.

8139250275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30440 (or 30435 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 8139250275 is about 90217.7935609157. The cubic root of 8139250275 is about 2011.5375045936.

The spelling of 8139250275 in words is "eight billion, one hundred thirty-nine million, two hundred fifty thousand, two hundred seventy-five".