8239150081 has 4 divisors (see below), whose sum is σ = 8343443200. Its totient is φ = 8134856964.

The previous prime is 8239149983. The next prime is 8239150093. The reversal of 8239150081 is 1800519328.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8239150081 - 2³¹ = 6091666433 is a prime.

It is a super-2 number, since 2×8239150081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8239150081.

It is not an unprimeable number, because it can be changed into a prime (8239150681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52146441 + ... + 52146598.

It is an arithmetic number, because the mean of its divisors is an integer number (2085860800).

Almost surely, 2^8239150081 is an apocalyptic number.

It is an amenable number.

8239150081 is a deficient number, since it is larger than the sum of its proper divisors (104293119).

8239150081 is a wasteful number, since it uses less digits than its factorization.

8239150081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104293118.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 8239150081 is about 90769.7641343195. The cubic root of 8239150081 is about 2019.7338211663.

The spelling of 8239150081 in words is "eight billion, two hundred thirty-nine million, one hundred fifty thousand, eighty-one".