508140681 has 8 divisors (see below), whose sum is σ = 687063744. Its totient is φ = 333989040.

The previous prime is 508140649. The next prime is 508140683. The reversal of 508140681 is 186041805.

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

It is not a de Polignac number, because 508140681 - 2⁵ = 508140649 is a prime.

It is a super-2 number, since 2×508140681² = 516413903374287522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (508140683) 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, 1192606 + ... + 1193031.

It is an arithmetic number, because the mean of its divisors is an integer number (85882968).

Almost surely, 2^508140681 is an apocalyptic number.

It is an amenable number.

508140681 is a deficient number, since it is larger than the sum of its proper divisors (178923063).

508140681 is a wasteful number, since it uses less digits than its factorization.

508140681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2385711.

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 508140681 is about 22541.9759781613. The cubic root of 508140681 is about 797.9848663282.

The spelling of 508140681 in words is "five hundred eight million, one hundred forty thousand, six hundred eighty-one".