6801531 has 24 divisors (see below), whose sum is σ = 10233552. Its totient is φ = 4012800.

The previous prime is 6801523. The next prime is 6801541. The reversal of 6801531 is 1351086.

It is not a de Polignac number, because 6801531 - 2³ = 6801523 is a prime.

It is a super-2 number, since 2×6801531² = 92521647887922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6801521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14655 + ... + 15111.

It is an arithmetic number, because the mean of its divisors is an integer number (426398).

Almost surely, 2^6801531 is an apocalyptic number.

6801531 is a deficient number, since it is larger than the sum of its proper divisors (3432021).

6801531 is a wasteful number, since it uses less digits than its factorization.

6801531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 6801531 is about 2607.9745014091. The cubic root of 6801531 is about 189.4678646807.

It can be divided in two parts, 680 and 1531, that added together give a triangular number (2211 = T₆₆).

The spelling of 6801531 in words is "six million, eight hundred one thousand, five hundred thirty-one".