8134638731 has 8 divisors (see below), whose sum is σ = 8400184704. Its totient is φ = 7869288960.

The previous prime is 8134638683. The next prime is 8134638763. The reversal of 8134638731 is 1378364318.

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

It is a cyclic number.

It is not a de Polignac number, because 8134638731 - 2¹⁸ = 8134376587 is a prime.

It is a super-2 number, since 2×8134638731² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8134634731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37685 + ... + 133001.

It is an arithmetic number, because the mean of its divisors is an integer number (1050023088).

Almost surely, 2^8134638731 is an apocalyptic number.

8134638731 is a deficient number, since it is larger than the sum of its proper divisors (265545973).

8134638731 is a wasteful number, since it uses less digits than its factorization.

8134638731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98101.

The product of its digits is 290304, while the sum is 44.

The square root of 8134638731 is about 90192.2320990006. The cubic root of 8134638731 is about 2011.1575332255.

The spelling of 8134638731 in words is "eight billion, one hundred thirty-four million, six hundred thirty-eight thousand, seven hundred thirty-one".