68000531 has 2 divisors, whose sum is σ = 68000532. Its totient is φ = 68000530.

The previous prime is 68000521. The next prime is 68000567. The reversal of 68000531 is 13500086.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68000531 - 2⁶ = 68000467 is a prime.

It is a super-2 number, since 2×68000531² = 9248144432563922, which contains 22 as substring.

It is a Chen prime.

It is equal to p_4007372 and since 68000531 and 4007372 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 68000497 and 68000506.

It is not a weakly prime, because it can be changed into another prime (68000521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34000265 + 34000266.

It is an arithmetic number, because the mean of its divisors is an integer number (34000266).

Almost surely, 2^68000531 is an apocalyptic number.

68000531 is a deficient number, since it is larger than the sum of its proper divisors (1).

68000531 is an equidigital number, since it uses as much as digits as its factorization.

68000531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 68000531 is about 8246.2434477767. The cubic root of 68000531 is about 408.1665726198.

The spelling of 68000531 in words is "sixty-eight million, five hundred thirty-one", and thus it is an aban number.