8281147261 has 8 divisors (see below), whose sum is σ = 8361788960. Its totient is φ = 8200806768.

The previous prime is 8281147243. The next prime is 8281147279. The reversal of 8281147261 is 1627411828.

It is an interprime number because it is at equal distance from previous prime (8281147243) and next prime (8281147279).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8281147261 - 2¹⁵ = 8281114493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8281147201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19851 + ... + 130216.

It is an arithmetic number, because the mean of its divisors is an integer number (1045223620).

Almost surely, 2^8281147261 is an apocalyptic number.

It is an amenable number.

8281147261 is a deficient number, since it is larger than the sum of its proper divisors (80641699).

8281147261 is a wasteful number, since it uses less digits than its factorization.

8281147261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150603.

The product of its digits is 43008, while the sum is 40.

The square root of 8281147261 is about 91000.8091227765. The cubic root of 8281147261 is about 2023.1597169850.

The spelling of 8281147261 in words is "eight billion, two hundred eighty-one million, one hundred forty-seven thousand, two hundred sixty-one".